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  1. The birds of North and Middle America : a descriptive catalogue of the higher groups, genera, species, and subspecies of birds known to occur in North America, from the Arctic lands to the Isthmus of Panama, the West Indies and other islands of the Caribbean sea, and the Galapagos Archipelago /
    By: Ridgway, Robert, - Friedmann, Herbert,
    Publication info: Washington :Govt. Print. Off.,1901-
    Holding Institution: Cornell University Library
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  2. The birds of North and middle America: a descriptive catalogue of the higher groups, genera, species, and subspecies of birds known to occur in North America, from the Arctic lands to the Isthmus of Panama, the West Indies and other islands of the Caribbean sea, and the Galapagos Archipelago.
    By: Ridgway, Robert, - Friedmann, Herbert,
    Publication info: Washington,Govt. Print. Off.,1901-
    Holding Institution: Boston College Libraries (archive.org)
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  3. Birds of the world; a popular account.
    By: Knowlton, Frank Hall, - Lucas, Frederic A. (Frederic Augustus), - Ridgway, Robert,
    Publication info: New York,Holt,1909.
    Holding Institution: University of California Libraries (archive.org)
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  4. Catalogue of the aquatic and fish-eating birds exhibited by the United States National Museum /
    By: Ridgway, Robert, - United States National Museum. - Great International Fisheries Exhibition London, England)
    Publication info: Washington :G.P.O.,1883.
    Holding Institution: Smithsonian Libraries
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  5. Color standards and color nomenclature,
    By: Ridgway, Robert,
    Publication info: Washington, D. C.The author,1912.
    Holding Institution: Missouri Botanical Garden, Peter H. Raven Library
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  6. Correspondence : Ridgway (Robert) and Engelmann (George), 1880.
    By: Ridgway, Robert,
    Holding Institution: Missouri Botanical Garden, Peter H. Raven Library
    BHL Collections: Engelmann Papers, Missouri Botanical Garden
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  7. A history of North American birds /
    By: Baird, Spencer Fullerton, - Brewer, T. M. (Thomas Mayo), - Ridgway, Robert,
    Publication info: Boston :Little, Brown,1905.
    Holding Institution: Smithsonian Libraries
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  8. A history of North American birds. Land birds.
    By: Baird, Spencer Fullerton, - Brewer, T. M. (Thomas Mayo), - Ridgway, Robert,
    Publication info: Boston,Little, Brown,1874.
    Holding Institution: Multiple institutions
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  9. The humming birds /
    By: Ridgway, Robert,
    Publication info: Washington :Govt. Print. Off.,1892.
    Holding Institution: Smithsonian Libraries
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  10. The humming birds.
    By: Ridgway, Robert,
    Holding Institution: Prelinger Library (archive.org)
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  11. A manual of North American birds
    By: Ridgway, Robert,
    Publication info: Philadelphia :J.B. Lippincott,1887.
    Holding Institution: Canadiana.org (archive.org)
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  12. A manual of North American birds.
    By: Ridgway, Robert,
    Edition: 2d ed.
    Publication info: Philadelphia,J. B. Lippincott Company,1896.
    Holding Institution: Cornell University Library
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  13. A manual of North American birds.
    By: Ridgway, Robert,
    Publication info: Philadelphia,J. B. Lippincott,1887.
    Holding Institution: Cornell University Library
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  14. A manual of North American birds.
    By: Ridgway, Robert,
    Publication info: Philadelphia,Lippincott,1887.
    Holding Institution: University of Toronto - Gerstein Science Information Centre
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  15. A manual of North American birds.
    By: Ridgway, Robert,
    Edition: 4th ed.
    Publication info: Philadelphia :J.B. Lippincott Co.,1900.
    Holding Institution: University Library, University of Illinois Urbana Champaign
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  16. A manual of North American birds.
    By: Ridgway, Robert,
    Edition: 2d ed.
    Publication info: Philadelphia,J. B. Lippincott company,1896.
    Holding Institution: American Museum of Natural History Library
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  17. A manual of North American birds.
    By: Ridgway, Robert,
    Publication info: Philadelphia,J. B. Lippincott Company,1887.
    Holding Institution: American Museum of Natural History Library
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  18. A nomenclature of colors for naturalists : and compendium of useful knowledge for ornithologists /
    By: Ridgway, Robert,
    Publication info: Boston :Little, Brown, and Company,1886.
    Holding Institution: Smithsonian Libraries
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  19. A nomenclature of colors for naturalists : and compendium of useful knowledge for ornithologists /
    By: Ridgway, Robert, - John Wilson and Son,
    Publication info: Boston :Little, Brown and Company,1886.
    Holding Institution: Research Library, The Getty Research Institute (archive.org)
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  20. Nomenclature of North American birds chiefly contained in the United States National Museum.
    By: Ridgway, Robert,
    Publication info: Washington,Govt. Print. Off.,1881.
    Holding Institution: Cornell University Library
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  21. Die Nordamerikanische Vogelwelt /
    By: Nehrling, Henry, - Ridgway, Robert,
    Publication info: Milwaukee, Wis. :G. Brumber,1891.
    Holding Institution: Smithsonian Libraries
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  22. Die Nord-Amerikanische Vogelwelt.
    By: Nehrling, Henry, - Ridgway, Robert,
    Publication info: Milwaukee, Wis.,G. Brumder[1889]-91.
    Holding Institution: American Museum of Natural History Library
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  23. On a collection of birds made by Messrs. J. E. Benedict and W. Nye of the United States Fish commission steamer "Albatross."
    By: Ridgway, Robert, - Benedict, James E. (James Everard) - Nye, W.
    Holding Institution: Smithsonian Libraries
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  24. On the plains, and among the peaks, or, How Mrs. Maxwell made her natural history collection /
    By: Thompson, Mary Emma (Dartt), - Coues, Elliott, - Ridgway, Robert,
    Publication info: Philadelphia :Claxton, Remsen & Haffelfinger,1879 [c1878]
    Holding Institution: Smithsonian Libraries
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  25. The ornithology of Illinois /
    By: Ridgway, Robert, - Forbes, Stephen Alfred,
    Publication info: Springfield, Ill.,H.W. Rokker, printer,1889-1895.
    Holding Institution: American Museum of Natural History Library
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  26. The ornithology of Illinois.
    By: Ridgway, Robert,
    Publication info: Springfield, Ill. :H. W. Rokker, printer,1889-95.
    Holding Institution: University of California Libraries (archive.org)
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  27. The ornithology of Illinois.
    By: Ridgway, Robert,
    Publication info: Springfield, Ill. :H.W. Rokker, printer,1889-95.
    Holding Institution: University Library, University of Illinois Urbana Champaign
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  28. The ornithology of Illinois.
    By: Ridgway, Robert,
    Publication info: Springfield, Ill.,H. W. Rokker, printer,1889-95.
    Holding Institution: MBLWHOI Library
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  29. The ornithology of Illinois. Part I. Descriptive catalogue.
    By: Ridgway, Robert, - Illinois. Natural History Survey Division.
    Publication info: Springfield, Ill.,H. W. Rokker, Printer,1889-95.
    Holding Institution: Cornell University Library
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  30. Outlines of a natural arrangement of the Falconidae.
    By: Ridgway, Robert,
    Publication info: Washington,Govt. Print. Off.,1875.
    Holding Institution: Cornell University Library
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  31. Outlines of American ornithology : part 1, Land birds /
    By: Baird, Spencer Fullerton, - Ridgway, Robert,
    Publication info: Boston :Little, Brown,1873 [i.e. 1874]
    Holding Institution: Smithsonian Libraries
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  32. Part I. Palæontology.
    By: Meek, F. B. (Fielding Bradford), - Hall, James, - Ridgway, Robert, - Whitfield, Robert Parr,
    Publication info: Washington,Govt. print. off.,1877.
    Holding Institution: Smithsonian Libraries
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  33. Report of the geological exploration of the fortieth parallel /
    By: United States Geological Exploration of the Fortieth Parallel - Bien, Julius, - Eaton, Daniel Cady, - Emmons, Samuel Franklin, - Hague, A. (Arnold), - Hague, James D. (James Duncan), - Hall, James, - King, Clarence, - Meek, F. B. (Fielding Bradford), - Ridgway, Robert, - Watson, Sereno, - Whitfield, R. P.
    Publication info: Washington, D.C. :G.P.O.,1870-80
    Holding Institution: University Library, University of Illinois Urbana Champaign
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  34. Report of the Geological exploration of the fortieth parallel
    By: United States Geological Exploration of the Fortieth Parallel - Bien, Julius, - Eaton, Daniel Cady, - Emmons, Samuel Franklin, - Hague, A. (Arnold), - Hague, James D. (James Duncan), - Hall, James, - King, Clarence, - Meek, F. B. (Fielding Bradford), - Ridgway, Robert, - Watson, Sereno, - Whitfield, Robert Parr,
    Publication info: Washington :Govt. Print. Off.,1870-80
    Holding Institution: Smithsonian Libraries
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  35. The water birds of North America.
    By: Baird, Spencer Fullerton, - Brewer, T. M. (Thomas Mayo), - Ridgway, Robert,
    Publication info: Boston,Little, Brown, and Company,1884.
    Holding Institution: Smithsonian Libraries
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  1. Additional notes on the native trees of the lower Wabash Valley
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 17
    Issue: 1010
    Date: 1895
    Page Range: 409--421
    Publication info: Washington :Smithsonian Institution Press, [etc.]
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  2. Another Kirtland's Warbler from Michigan
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 1
    Date: 1884
    Page Range: 389--389
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  3. Baird, Brewer, and Ridgway's Water Birds of North America
    By: Baird, Spencer Fullerton, - Brewer, T M - Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 1
    Date: 1884
    Page Range: 382--386
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  4. Belding on Birds of Lower California
    By: Belding, L - Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 1
    Date: 1884
    Page Range: 83--84
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  5. Belding on Birds of Lower California
    By: Belding, L - Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 1
    Date: 1884
    Page Range: 83--84
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  6. The birds of North and middle America …
    By: Ridgway, Robert,
    Type: Article
    In: Bulletin - United States National Museum.
    Date: 1907
    Publication info: Washington :Smithsonian Institution Press, [etc.];1877-1971.
    View Article
  7. Birds of the Galapagos Archipelago
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 19
    Issue: 1116
    Date: 1897
    Page Range: 459--670
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  8. Buteo brachyurus and B. fuliginosus
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 7
    Date: 1890
    Page Range: 90--91
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
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  9. Catalogue of a collection of birds made by Mr. Chas. H. Townsend, on islands in the Caribbean Sea and in Honduras
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 10
    Issue: 665
    Date: 1888
    Page Range: 572--597
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  10. Catalogue of a collection of birds made on the Island of Cozumel, Yucatan, by the naturalists of the U. S. Fish Commission steamer Albatross, Capt. Z.L. Tanner, Commander
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 8
    Issue: 539
    Date: 1885
    Page Range: 560--583
    Publication info: Washington :Smithsonian Institution Press, [etc.]
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  11. A catalogue of the birds of North America
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 3
    Issue: 138
    Date: 1880
    Page Range: 163--246
    Publication info: Washington :Smithsonian Institution Press, [etc.]
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  12. Characters of a new American family of passerine birds
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 18
    Issue: 1076
    Date: 1896
    Page Range: 449--450
    Publication info: Washington :Smithsonian Institution Press, [etc.]
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  13. Colinus virginianus cubanensis Not a Florida Bird
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 11
    Date: 1894
    Page Range: 324--325
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
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  14. Concerning Three alleged "Erroneous Georgia Records"
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 27
    Date: 1910
    Page Range: 88--88
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  15. Correct Nomenclature of the Texas Cardinal
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 14
    Date: 1897
    Page Range: 95--95
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
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  16. Description of a melanistic specimen of Buteo latissimus (Wils.)
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 9
    Issue: 567
    Date: 1886
    Page Range: 248--249
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  17. Description of a new American kingfisher
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the Biological Society of Washington.
    Volume: 2
    Date: 1880-1886
    Page Range: 95--96
    Publication info: Washington,Biological Society of Washington
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  18. Description of a New Cardinal Grosbeak from Arizona
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 2
    Date: 1885
    Page Range: 343--345
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
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  19. Description of a new fly-catcher and a supposed new petrel from the Sandwich Islands
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 4
    Issue: 236
    Date: 1882
    Page Range: 337--338
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  20. Description of a New Genus of Tyrannidæ from Santo Domingo
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 3
    Date: 1886
    Page Range: 382--383
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  21. Description of a new Geothlypis from Brownsville, Texas
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 16
    Issue: 964
    Date: 1894
    Page Range: 691--692
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  22. Description of a new hawk from Cozumel
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 8
    Issue: 494
    Date: 1885
    Page Range: 94--95
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  23. Description of a new plumed partridge from Sonora
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 10
    Issue: 617
    Date: 1887
    Page Range: 148--150
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  24. Description of a new race of the red-shouldered hawk from Florida
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 7
    Issue: 457
    Date: 1885
    Page Range: 514--515
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  25. Description of a new sharp-tailed sparrow from California
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 14
    Issue: 872
    Date: 1891
    Page Range: 483--484
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  26. Description of a new snow bunting from Alaska
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 7
    Issue: 412
    Date: 1884
    Page Range: 68--70
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  27. Description of a new species of boat-billed heron from Central America
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 8
    Issue: 493
    Date: 1885
    Page Range: 93--94
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  28. Description of a new species of Cotinga from the Pacific coast of Costa Rica
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 10
    Issue: 599
    Date: 1887
    Page Range: 1--2
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  29. Description of a New Species of Elf Owl from Socorro Island, Western Mexico
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 3
    Date: 1886
    Page Range: 333--334
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  30. Description of a new species of ground warbler from eastern Mexico
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 18
    Issue: 1045
    Date: 1896
    Page Range: 119--120
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  31. Description of a New Species of Hummingbird from Arizona
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 15
    Date: 1898
    Page Range: 325--326
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  32. Description of a new species of whippoorwill from Costa Rica
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 14
    Issue: 867
    Date: 1891
    Page Range: 465--466
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  33. Description of a new storm petrel from the coast of western Mexico
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 16
    Issue: 962
    Date: 1893
    Page Range: 687--688
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  34. Description of a New Tityra from West ern Mexico
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 5
    Date: 1888
    Page Range: 263--263
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  35. Description of a recently new oyster-catcher (Haematopus galapagensis) from the Galapagos Islands
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 9
    Issue: 573
    Date: 1887
    Page Range: 325--326
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  36. Description of a supposed new species of Odontophorus from southern Mexico
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 16
    Issue: 945
    Date: 1893
    Page Range: 469--470
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  37. Description of an adult female Euphonia supposed to be Euphonia gnatho (Cabanis)
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the Biological Society of Washington.
    Volume: 18
    Date: 1905
    Page Range: 225--226
    Publication info: Washington,Biological Society of Washington
    View Article
  38. Description of Four New Species of Birds from the Bahama Islands
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 3
    Date: 1886
    Page Range: 334--337
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  39. Description of some new species of birds from Cozumel Island, Yucatan
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the Biological Society of Washington.
    Volume: 3
    Date: 1880-1886
    Page Range: 21--24
    Publication info: Washington,Biological Society of Washington
    View Article
  40. Description of three supposed new honey creepers from the Lesser Antilles, with a synopsis of the species of the genus Certhiola
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 8
    Issue: 478
    Date: 1885
    Page Range: 25--30
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  41. Description of two new birds from Costa Rica
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 8
    Issue: 477
    Date: 1885
    Page Range: 23--24
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  42. Description of two new species of birds from Costa Rica, and notes on other rare species from that country
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 1
    Issue: 39
    Date: 1878
    Page Range: 252--255
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  43. Description of two new species of Kaup's genus Megascops
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 10
    Date: 1887
    Page Range: 267--268
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  44. Description of two supposed new species of swifts
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 16
    Issue: 923
    Date: 1893
    Page Range: 43--44
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  45. Descriptions of new genera species and subspecies of American birds
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the Biological Society of Washington.
    Volume: 16
    Date: 1903
    Page Range: 105--111
    Publication info: Washington,Biological Society of Washington
    View Article
  46. Descriptions of new species and genera of birds from the lower Amazon
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 10
    Issue: 660
    Date: 1888
    Page Range: 516--528
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  47. Descriptions of seven new species and subspecies of birds from Tropical America
    By: Ridgway, Robert,
    Type: Article
    In: Smithsonian miscellaneous collections.
    Volume: 47
    Date: 1905
    Page Range: 112--113
    Publication info: Washington :Smithsonian Institution,1862-1972.
    View Article
  48. Descriptions of some new birds collected on the islands of Aldabra and Assumption, northwest of Madagascar, by Dr. W. L. Abbott
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 16
    Issue: 953
    Date: 1893
    Page Range: 597--600
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  49. Descriptions of some new birds from Aldabra, Assumption, and Gloriosa Islands, collected by Dr. W. L. Abbott
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 17
    Issue: 1008
    Date: 1894
    Page Range: 371--373
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  50. Descriptions of some new forms of American cuckoos, parrots, and pigeons
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the Biological Society of Washington.
    Volume: 28
    Date: 1915
    Page Range: 105--107
    Publication info: Washington,Biological Society of Washington
    View Article
  51. Descriptions of some new forms of oligomyodian birds
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the Biological Society of Washington.
    Volume: 19
    Date: 1906
    Page Range: 115--120
    Publication info: Washington,Biological Society of Washington
    View Article
  52. Descriptions of some new genera of Tyrannidae, Pipridae, and Cotingidae
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the Biological Society of Washington.
    Volume: 18
    Date: 1905
    Page Range: 207--210
    Publication info: Washington,Biological Society of Washington
    View Article
  53. Descriptions of some new North American birds
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the Biological Society of Washington.
    Volume: 2
    Date: 1880-1886
    Page Range: 89--95
    Publication info: Washington,Biological Society of Washington
    View Article
  54. Descriptions of some new species and subspecies of birds from Middle America
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 10
    Issue: 655
    Date: 1888
    Page Range: 505--510
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  55. Descriptions of some new species and subspecies of birds from tropical America
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the Biological Society of Washington.
    Volume: 25
    Date: 1912
    Page Range: 87--92
    Publication info: Washington,Biological Society of Washington
    View Article
  56. Descriptions of some new species of birds, supposed to be from the interior of Venezuela
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 9
    Issue: 555
    Date: 1886
    Page Range: 92--94
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  57. Descriptions of Supposed New Genera, Species, and Subspecies of American Birds. I. Fringillidæ
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 15
    Date: 1898
    Page Range: 223--230
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  58. Descriptions of Three New Birds of the Families Mniotiltidæ and Corvidæ
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 19
    Date: 1902
    Page Range: 69--70
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  59. Descriptions of twenty-two new species of birds from the Galapagos Island
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 17
    Issue: 1007
    Date: 1894
    Page Range: 357--370
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  60. Diagnoses of new forms of Micropodidae and Trochilidae
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the Biological Society of Washington.
    Volume: 23
    Date: 1910
    Page Range: 53--55
    Publication info: Washington,Biological Society of Washington
    View Article
  61. Diagnoses of nine new forms of American birds
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the Biological Society of Washington.
    Volume: 16
    Date: 1903
    Page Range: 167--169
    Publication info: Washington,Biological Society of Washington
    View Article
  62. Diagnoses of some new forms of neotropical birds
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the Biological Society of Washington.
    Volume: 21
    Date: 1908
    Page Range: 191--195
    Publication info: Washington,Biological Society of Washington
    View Article
  63. Diagnoses of some new forms of Picidae
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the Biological Society of Washington.
    Volume: 24
    Date: 1911
    Page Range: 31--35
    Publication info: Washington,Biological Society of Washington
    View Article
  64. Diagnoses of some new genera of American birds
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the Biological Society of Washington.
    Volume: 25
    Date: 1912
    Page Range: 97--101
    Publication info: Washington,Biological Society of Washington
    View Article
  65. Discovery of the Breeding Place of McKay's Snowflake (Plectrophenax hyperboreus)
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 3
    Date: 1886
    Page Range: 276--277
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  66. Dr. Abbott's Collections from the Seychelles and Other Islands
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 13
    Date: 1896
    Page Range: 331--332
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  67. An Earlier Name for Ammodramus leconteii
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 14
    Date: 1897
    Page Range: 320--320
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  68. Eighth Supplement to the American Ornithologists' Union Check-List of North American Birds
    By: Brewster, William, - Allen, J A - Coues , Elliott - Merriam, C Hart - Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 14
    Date: 1897
    Page Range: 117--135
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  69. Fifth Supplement to the American Ornithologists' Union Check-List of North American Birds
    By: Coues , Elliott - Allen, J A - Brewster, William, - Chapman, Frank M. (Frank Michler), - Cory, Charles B - Henshaw, H W - Merriam, C Hart - Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 10
    Date: 1893
    Page Range: 59--63
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  70. Fourth Supplement to the American Ornithologists' Union Check-List of North American Birds
    By: Allen, J A - Brewster, William, - Chapman, Frank M. (Frank Michler), - Cory, Charles B - Coues , Elliott - Henshaw, H W - Merriam, C Hart - Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 9
    Date: 1892
    Page Range: 105--108
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  71. Further notes on the genus Xiphocolaptes of Lesson
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 13
    Issue: 796
    Date: 1890
    Page Range: 47--48
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  72. Geographical, versus Sexual, Variation in Oreortyx pictus
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 11
    Date: 1894
    Page Range: 193--196
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  73. Harlan's Hawk a Race of the Red-Tail, and Not a Distinct Species
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 7
    Date: 1890
    Page Range: 205--206
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  74. Helminthophila Leucobronchialis
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 2
    Date: 1885
    Page Range: 359--363
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  75. Hemithraupis: A Correction
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 15
    Date: 1898
    Page Range: 330--331
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  76. Hybridism and Generic Characters in the Trochilidæ
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 26
    Date: 1909
    Page Range: 440--442
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  77. Icterus cucullatus, Swainson, and its geographical variations
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 8
    Issue: 472
    Date: 1885
    Page Range: 18--19
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  78. A Letter from Robert Ridgway
    By: Burns, Frank L - Ridgway, Robert,
    Type: Article
    In: The Wilson bulletin.
    Volume: 42
    Issue: 2
    Date: 1930
    Page Range: 109--110
    Publication info: Columbus, Ohio :Wilson Ornithological Society,1894-2005.
    View Article
  79. List of Birds Collected on the Bahama Islands by the Naturalists of the Fish Commission Steamer Albatross
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 8
    Date: 1891
    Page Range: 333--339
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  80. List of species of Middle and South American birds not contained in the United States National Museum
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 4
    Issue: 215
    Date: 1881
    Page Range: 165--203
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  81. Lophophanes vs. Bæolophus
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 20
    Date: 1903
    Page Range: 308--308
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  82. Mareca Americana
    By: Cooper, J. G. - Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 3
    Date: 1886
    Page Range: 401--404
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  83. Native Trees of the Lower Wabash in Illinois and Indiana
    By: Ridgway, Robert,
    Type: Article
    In: Botanical gazette.
    Volume: 7
    Issue: 8/9
    Date: 1882
    Page Range: 102--103
    Publication info: Chicago [etc.]University of Chicago Press [etc.]
    View Article
  84. New Edition of Ridgway's 'Nomenclature of Colors'
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 26
    Date: 1909
    Page Range: 450--450
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  85. New genera of Tyrannidae and Turdidae, and new forms of Tanagridae and Turdidae
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the Biological Society of Washington.
    Volume: 18
    Date: 1905
    Page Range: 211--213
    Publication info: Washington,Biological Society of Washington
    View Article
  86. New genera, species and subspecies of Formicariidae, Fumariidae, and Dendrocolaptidae
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the Biological Society of Washington.
    Volume: 22
    Date: 1909
    Page Range: 69--74
    Publication info: Washington,Biological Society of Washington
    View Article
  87. A New Name Necessary for Selasphorus floresii Gould
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 8
    Date: 1891
    Page Range: 114--114
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  88. A New Petrel for North America
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 2
    Date: 1885
    Page Range: 386--387
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  89. New Species, Etc., of American Birds. IV. Fringillidæ (Concluded); Corvidæ (Part)
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 16
    Date: 1899
    Page Range: 254--256
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  90. New Species, Etc., of American Birds. V. Corvidæ (Concluded)
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 17
    Date: 1900
    Page Range: 27--29
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  91. New Species, Etc., of American Birds: III. Fringillidæ (Continued)
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 16
    Date: 1899
    Page Range: 35--37
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  92. New Species, Etc., of American Birds: VI. Fringillidæ (Supplement)
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 17
    Date: 1900
    Page Range: 29--30
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  93. Note on Astur atricapillus striatulus
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 1
    Date: 1884
    Page Range: 252--253
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  94. Note on Junco Annectens Baird and J. ridgwayi Mearns
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 14
    Date: 1897
    Page Range: 94--94
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  95. Note on Pachyrhamphus alhinucha, Burmeister
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 14
    Issue: 870
    Date: 1891
    Page Range: 479--480
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  96. Note on Rougetius aldabranus
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 11
    Date: 1894
    Page Range: 74--74
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  97. Note on Sarcorhamphus æquatorialis Sharpe
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 2
    Date: 1885
    Page Range: 169--171
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  98. Note on Spizella Monticola Ochracea Brewst
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 4
    Date: 1887
    Page Range: 258--259
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  99. Note on the Alleged Occurrence of Trochilus heloisa (Less. & De Latt.) within North American Limits
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 8
    Date: 1891
    Page Range: 115--115
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  100. Note on the Anas hyperboreus, Pall. and Anser albatus, Cass
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the Biological Society of Washington.
    Volume: 2
    Date: 1880-1886
    Page Range: 107--108
    Publication info: Washington,Biological Society of Washington
    View Article
  101. Note on the Anser leucopareius of Brandt
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 8
    Issue: 475
    Date: 1885
    Page Range: 21--22
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  102. Note regarding the earliest name for Carpodacus haemorrhous (Wagler)
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the Biological Society of Washington.
    Volume: 2
    Date: 1880-1886
    Page Range: 110--111
    Publication info: Washington,Biological Society of Washington
    View Article
  103. Notes on Ardea wuerdemanni Baird
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 10
    Issue: 612
    Date: 1887
    Page Range: 112--115
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  104. Notes on Costa Rican birds, with descriptions of seven new species and subspecies and one new genus
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 11
    Issue: 750
    Date: 1889
    Page Range: 537--546
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  105. Notes on some birds from the interior of Honduras
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 14
    Issue: 868
    Date: 1891
    Page Range: 467--471
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  106. Notes on some Costa Rica Birds
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 4
    Date: 1882
    Page Range: 333--337
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  107. Notes on some Costa Rican birds
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 14
    Issue: 869
    Date: 1891
    Page Range: 473--478
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  108. Notes on the genus Sittasomus of Swainson
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 14
    Issue: 877
    Date: 1891
    Page Range: 507--510
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  109. Observations on the Farallon rail (Porzana jamaicensis coturniculus Baird)
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 13
    Issue: 828
    Date: 1890
    Page Range: 309--311
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  110. On a collection of birds made by Messrs. J. E. Benedict and W. Nye, of the United States Fish Commission steamer Albatross
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 7
    Issue: 420
    Date: 1884
    Page Range: 172--180
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  111. On a duck new to the North American fauna
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 4
    Issue: 188
    Date: 1881
    Page Range: 22--24
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  112. On a probable hybrid between Dryobates nuttallii (Gamb.) and D. pubescens gairdnerii (Aud.)
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 9
    Issue: 590
    Date: 1887
    Page Range: 521--522
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  113. On a small collection of birds from Costa Rica
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 16
    Issue: 956
    Date: 1893
    Page Range: 609--614
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  114. On Aestrelata sandwichensis Ridgw
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 9
    Issue: 556
    Date: 1886
    Page Range: 95--96
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  115. On birds collected by Doctor W. L. Abbott in the Seychelles, Amirantes, Gloriosa, Assumption, Aldabra, and adjacent islands, with notes on habits, etc., by the collector
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 18
    Issue: 1079
    Date: 1896
    Page Range: 509--546
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  116. On Buteo harlani (Aud.) and B. cooperi Cass
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 2
    Date: 1885
    Page Range: 165--166
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  117. On Cathartes burrovianus, Cassin, and C. urubitinga, Pelzeln
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 8
    Date: 1885
    Page Range: 34--36
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  118. On Cathartes burrovianus, Cassin, and C. urubitinga, Pelzeln
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 8
    Date: 1885
    Page Range: 34--36
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  119. On Fisher's Petrel (Æstrelata fisheri)
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 12
    Date: 1895
    Page Range: 319--322
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  120. On Geographical Variation in Sialia mexicana Swainson
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 11
    Date: 1894
    Page Range: 145--160
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  121. On Junco Cinereus (Swains.) and Its Geographical Races
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 2
    Date: 1885
    Page Range: 363--364
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  122. On Peucaea mexicana (Lawr.) a sparrow new to the United States
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 8
    Issue: 496
    Date: 1885
    Page Range: 98--99
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  123. On Phrygilus gayi (Eyd. & Gerv.) and allied species
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 10
    Date: 1887
    Page Range: 431--435
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  124. On the Buteonine Subgenus Craxirex, Gould
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the Academy of Natural Sciences of Philadelphia.
    Volume: 27
    Date: 1875
    Page Range: 89--119
    Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia
    View Article
  125. On the Correct Subspecific Title of Baird's Wren (No. 719 b, A. O. U. Check-List)
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 4
    Date: 1887
    Page Range: 349--350
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  126. On the Genus Astragalinus Cabanis
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 16
    Date: 1899
    Page Range: 79--80
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  127. On the Glaucous Gull of Bering's Sea and Contiguous Waters
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 3
    Date: 1886
    Page Range: 330--331
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  128. On the Possible Specific Identity of Buteo cooperi Cass. with B. harlani (Aud.)
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 1
    Date: 1884
    Page Range: 253--254
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  129. On the Proper Name for the Prairie Hen
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 3
    Date: 1886
    Page Range: 132--133
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  130. On the Status of Lanius robustus Baird as a North American Bird
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 14
    Date: 1897
    Page Range: 323--323
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  131. On Two Abnormally Colored Specimens of the Bluebird (Sialia sialis)
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 3
    Date: 1886
    Page Range: 282--283
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  132. Picicorvus an Untenable Genus
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 11
    Date: 1894
    Page Range: 179--179
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  133. Preliminary description of some new birds from the Galapagos Archipelago
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 18
    Issue: 1067
    Date: 1896
    Page Range: 293--294
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  134. Preliminary Descriptions of Some New Species of Birds from Southern Mexico, in the Collection of the Mexican Geographical and Exploring Commission
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 3
    Date: 1886
    Page Range: 331--333
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  135. Probable Breeding of the Red Crossbill (Loxia curvirostra americana) in Central Maryland
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 1
    Date: 1884
    Page Range: 292--293
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  136. Remarks on the avian genus Myiarchus, with special reference to M. yucatanensis Lawrence
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 16
    Issue: 955
    Date: 1893
    Page Range: 605--608
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  137. Remarks on the Californian Vulture (Pseudogryphus californianus)
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 2
    Date: 1885
    Page Range: 167--169
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  138. Remarks on the type specimen of Buteo oxypterus, Cassin
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 8
    Issue: 488
    Date: 1885
    Page Range: 75--77
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  139. Remarks on the type specimens of Muscicapa fulvifrons, Giraud, and Mitrephorus pallescens, Coues
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the Biological Society of Washington.
    Volume: 2
    Date: 1880-1886
    Page Range: 108--110
    Publication info: Washington,Biological Society of Washington
    View Article
  140. A review of the American "golden warblers"
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 8
    Date: 1885
    Page Range: 348--350
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  141. A review of the American crossbills (Loxia) of the L. curvirostra type
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the Biological Society of Washington.
    Volume: 2
    Date: 1880-1886
    Page Range: 101--107
    Publication info: Washington,Biological Society of Washington
    View Article
  142. A review of the American species of the genus Scops, Savigny
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 1
    Issue: 21
    Date: 1878
    Page Range: 85--117
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  143. A review of the genus Centurus, Swainson
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 4
    Issue: 198
    Date: 1881
    Page Range: 93--119
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  144. A review of the genus Dendrocincla Gray
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 10
    Issue: 650
    Date: 1888
    Page Range: 488--497
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  145. A review of the genus Psittacula of Brisson
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 10
    Issue: 661
    Date: 1888
    Page Range: 529--548
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  146. A review of the genus Sclerurus of Swainson
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 12
    Issue: 762
    Date: 1890
    Page Range: 21--31
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  147. A review of the genus Xiphocolaptes of Lesson
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 12
    Issue: 761
    Date: 1890
    Page Range: 1--20
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  148. A revision of the genus Formicarius Boddaert
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 16
    Issue: 961
    Date: 1893
    Page Range: 667--686
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  149. Ridgway and Bendire's Directions for Collecting and Preparing Birds and Their Eggs and Nests
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 9
    Date: 1892
    Page Range: 175--176
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  150. Ridgway and Lucas on a New Family of Birds
    By: Ridgway, Robert, - Lucas, Frederic A. (Frederic Augustus),
    Type: Article
    In: The Auk.
    Volume: 13
    Date: 1896
    Page Range: 334--335
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  151. Ridgway on a Collection of Birds from Alaska
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 11
    Date: 1894
    Page Range: 169--169
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  152. Ridgway on Birds from the Galapagos Islands, the Abrolhos, the Island of Santa Lucia, and from the Straits of Magellan
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 7
    Date: 1890
    Page Range: 273--274
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  153. Ridgway on Birds from the Galapagos Islands, the Abrolhos, the Island of Santa Lucia, and from the Straits of Magellan
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 7
    Date: 1890
    Page Range: 273--274
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  154. Ridgway on New American Birds
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 2
    Date: 1885
    Page Range: 370--371
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  155. Ridgway on New Birds from Lower California
    By: Belding, L - Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 1
    Date: 1884
    Page Range: 284--285
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  156. Ridgway on New Birds from Mexico and the West Indies
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 10
    Date: 1893
    Page Range: 346--346
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  157. Ridgway on New Birds from Mexico and the West Indies
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 10
    Date: 1893
    Page Range: 346--346
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  158. Ridgway on New Birds from Mexico and the West Indies
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 10
    Date: 1893
    Page Range: 346--346
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  159. Ridgway on New Birds from the Galapagos Islands
    By: Ridgway, Robert, - Abbott, W L
    Type: Article
    In: The Auk.
    Volume: 12
    Date: 1895
    Page Range: 70--71
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  160. Ridgway on New Birds from the Galapagos Islands
    By: Ridgway, Robert, - Abbott, W L
    Type: Article
    In: The Auk.
    Volume: 12
    Date: 1895
    Page Range: 70--71
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  161. Ridgway on New Genera, Species, and Subspecies of Tropical American Birds
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 26
    Date: 1909
    Page Range: 321--321
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  162. Ridgway on New or Little-Known American Birds
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 5
    Date: 1888
    Page Range: 194--195
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  163. Ridgway on New Species and Subspecies of American Birds, and on the Nomenclature of Other Species
    By: Benedict, James E. (James Everard) - Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 2
    Date: 1885
    Page Range: 290--293
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  164. Ridgway on New Species of Birds from Cozumel Island, Yucatan
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 2
    Date: 1885
    Page Range: 294--295
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  165. Ridgway on the American Families of Oligomyodian Passeres
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 23
    Date: 1906
    Page Range: 233--233
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  166. Ridgway on the American Red Crossbills
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 2
    Date: 1885
    Page Range: 206--207
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  167. Ridgway on the Genus Sclerurus
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 7
    Date: 1890
    Page Range: 272--273
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  168. Ridgway on the Genus Xiphocolaptes
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 7
    Date: 1890
    Page Range: 271--272
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  169. Ridgway on the Pied Wagtails of Eastern Asia
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 1
    Date: 1884
    Page Range: 387--387
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  170. Ridgway on the Type Specimen of Buteo Oxypterus Cassin
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 2
    Date: 1885
    Page Range: 371--371
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  171. Ridgway's 'Birds of North and Middle America.' Part I
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 19
    Date: 1902
    Page Range: 97--102
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  172. Ridgway's 'Birds of North and Middle America.' Part II
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 20
    Date: 1903
    Page Range: 73--76
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  173. Ridgway's Birds of North and Middle America. Part V
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 29
    Date: 1912
    Page Range: 256--257
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  174. Ridgway's Birds of the Galapagos Archipelago
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 14
    Date: 1897
    Page Range: 329--330
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  175. Ridgway's 'Manual of North American Birds'
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 4
    Date: 1887
    Page Range: 333--336
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  176. Ridgway's 'Manual of North American Birds,' Second Edition
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 14
    Date: 1897
    Page Range: 232--233
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  177. Ridgway's Nomenclature of Colors and Ornithologists' Compendium
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 4
    Date: 1887
    Page Range: 152--153
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  178. Ridgway's Ornithology of Illinois
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 12
    Date: 1895
    Page Range: 379--380
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  179. Ridgway's Ornithology of Illinois
    By: Forbes, S A - Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 7
    Date: 1890
    Page Range: 74--77
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  180. Ridgway's Ornithology of Illinois
    By: Forbes, S A - Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 7
    Date: 1890
    Page Range: 74--77
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  181. Ridgway's 'The Birds of North and Middle America' Part VII
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 33
    Date: 1916
    Page Range: 331--332
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  182. Ridgway's 'The Birds of North and Middle America,' Part III
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 22
    Date: 1905
    Page Range: 219--222
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  183. Ridgway's 'The Birds of North and Middle America,' Part IV
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 24
    Date: 1907
    Page Range: 450--451
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  184. Ridgway's 'The Birds of North and Middle America,' Part IV
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 24
    Date: 1907
    Page Range: 450--451
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  185. Ridgway's 'The Birds of North and Middle America,' Part VIII
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 36
    Date: 1919
    Page Range: 595--597
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  186. Ridgway's 'The Humming Birds'
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 9
    Date: 1892
    Page Range: 376--377
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  187. Salvin and Godman's Biologia Centrali-Americana-Aves
    By: Ridgway, Robert, - Salvin, Osbert
    Type: Article
    In: The Auk.
    Volume: 7
    Date: 1890
    Page Range: 189--195
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  188. Scientific results of explorations by the U. S. Fish Commission steamer Albatross. No. I..Birds collected on the Galapagos Islands in 1888
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 12
    Date: 1890
    Page Range: 101--128
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  189. Scientific results of explorations by the U. S. Fish Commission steamer Albatross. No. II..Birds collected on the Island of Santa Lucia, West Indies, the Abrolhos Islands, Brazil, and at the Straits of Magellan, in 1887-'88
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 12
    Date: 1890
    Page Range: 129--139
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  190. Scientific results of explorations by the U. S. Fish Commission steamer Albatross. No. II..Birds collected on the Island of Santa Lucia, West Indies, the Abrolhos Islands, Brazil, and at the Straits of Magellan, in 1887-'88
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 12
    Date: 1890
    Page Range: 129--139
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  191. Scientific results of explorations by the U. S. Fish Commission steamer Albatross. No. XXVII..Catalogue of a collection of birds made in Alaska by Mr. C. H. Townsend during the cruise of the U. S. Fish Commission steamer Albatross, in the summer and autumn of 1888
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 16
    Date: 1893
    Page Range: 663--665
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  192. The Scissor-Tailed Flycatcher (Milvulus Forficatus) at Key West
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 3
    Date: 1886
    Page Range: 134--135
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  193. Second Supplement to the American Ornithologists' Union Check-List of North American Birds
    By: Allen, J A - Brewster, William, - Coues , Elliott - Ridgway, Robert, - Sage, John H
    Type: Article
    In: The Auk.
    Volume: 7
    Date: 1890
    Page Range: 60--66
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  194. Seventh Supplement to the American Ornithologists' Union Check-List of North American Birds
    By: Coues , Elliott - Allen, J A - Brewster, William, - Merriam, C Hart - Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 12
    Date: 1895
    Page Range: 163--169
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  195. A Singularly Marked Specimen of Sphyrapicus Thyroideus
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 4
    Date: 1887
    Page Range: 75--76
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  196. Sixth Supplement to the American Ornithologists' Union Check-List of North American Birds
    By: Coues , Elliott - Allen, J A - Brewster, William, - Merriam, C Hart - Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 11
    Date: 1894
    Page Range: 46--51
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  197. Some emended names of North American birds
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 8
    Issue: 524
    Date: 1885
    Page Range: 354--356
    Publication info: Washington :Smithsonian Institution Press, [etc.]
    View Article
  198. Some observations concerning the American families of oligomyodian passeres
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the Biological Society of Washington.
    Volume: 19
    Date: 1906-01-29
    Page Range: 7--16
    Publication info: Washington,Biological Society of Washington
    View Article
  199. Spencer Fullerton Baird
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 5
    Date: 1888
    Page Range: 1--14
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  200. Spring Arrivals at Washington, D. C
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 9
    Date: 1892
    Page Range: 307--308
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  201. Studies of the American Falconidæ: Monograph of the Genus Micrastur
    By: Ridgway, Robert,
    Type: Article
    In: Proceedings of the Academy of Natural Sciences of Philadelphia.
    Volume: 27
    Date: 1875
    Page Range: 470--502
    Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia
    View Article
  202. Supplementary Remarks on the Genus Psittacula Brisson
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 5
    Date: 1888
    Page Range: 460--462
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  203. Thayer and Bangs on the Birds of Guadaloupe Island
    By: Thayer, John Eliot, - Bangs, Outram - Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 26
    Date: 1909
    Page Range: 319--320
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  204. Thayer and Bangs on the Birds of Guadaloupe Island
    By: Thayer, John Eliot, - Bangs, Outram - Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 26
    Date: 1909
    Page Range: 319--320
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  205. Third Supplement to the American Ornithologists' Union Check-List of North American Birds
    By: Sage, John H - Allen, J A - Brewster, William, - Coues , Elliott - Henshaw, H W - Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 8
    Date: 1891
    Page Range: 83--90
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article
  206. 'Water Birds of North America':'A Few Corrections' Rectified
    By: Ridgway, Robert,
    Type: Article
    In: The Auk.
    Volume: 3
    Date: 1886
    Page Range: 266--268
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-
    View Article