Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1976)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1978)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1978)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1984)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1984)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1984)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1984)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1991)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1991)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1993)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1993)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1997)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 1997)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 2000)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 2000)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 2002)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 2002)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 2012)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 2012)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 2013)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 2013)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 2013)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 2013)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 2013)

Bulletin of the British Ornithologists' Club - British Ornithologists' Club. (British Ornithologists' Club, 2015)

Bulletin of the College of Charleston Museum - College of Charleston. Museum. (The Museum, 1905)

Bulletin of the Department of Geology - University of California, Berkeley. Department of Geology. (The University Press, 1906)

Bulletin of the Department of Geology - University of California, Berkeley. Department of Geology. (The University Press, 1906)

Bulletin of the Department of Geology - University of California, Berkeley. Department of Geology. (The University Press, 1912)

Bulletin of the Museum of Comparative Zoology at Harvard College - Harvard University. Museum of Comparative Zoology. (The Museum, 1935)

Bulletin of the Texas Ornithological Society - Texas Ornithological Society. (Texas Ornithological Society, 2008)

Bulletin of the Texas Ornithological Society - Texas Ornithological Society. (Texas Ornithological Society, 2008)

Bulletin of the Texas Ornithological Society - Texas Ornithological Society. (Texas Ornithological Society, 2009)

Bulletin of the Texas Ornithological Society - Texas Ornithological Society. (Texas Ornithological Society, 2009)

Bulletin of the Texas Ornithological Society - Texas Ornithological Society. (Texas Ornithological Society, 2009)

Bulletin of the Texas Ornithological Society - Texas Ornithological Society. (Texas Ornithological Society, 2010)

Bulletin of the Texas Ornithological Society - Texas Ornithological Society. (Texas Ornithological Society, 2010)

Bulletin of the Texas Ornithological Society - Texas Ornithological Society. (Texas Ornithological Society, 2012)

Bulletin of the Texas Ornithological Society - Texas Ornithological Society. (Texas Ornithological Society, 2013)

Bulletin of the Texas Ornithological Society - Texas Ornithological Society. (Texas Ornithological Society, 2014)

Bulletin of the Texas Ornithological Society - Texas Ornithological Society. (Texas Ornithological Society, 2016)

Bulletin of the Texas Ornithological Society - Texas Ornithological Society. (Texas Ornithological Society, 2017)

Bulletin of the Texas Ornithological Society - Texas Ornithological Society. (Texas Ornithological Society, 2017)

Bulletin of the Texas Ornithological Society - Texas Ornithological Society. (Texas Ornithological Society, 2018)

Bulletin of the Texas Ornithological Society - Texas Ornithological Society. (Texas Ornithological Society, 2018)

Bulletin of the Texas Ornithological Society - Texas Ornithological Society. (Texas Ornithological Society, 2019)

Bulletin of the Texas Ornithological Society - Texas Ornithological Society. (Texas Ornithological Society, 2019)

Bulletin of the Texas Ornithological Society - Texas Ornithological Society. (Texas Ornithological Society, 2020)

Bulletin of the United States Geological and Geographical Survey of the Territories - Geological; Geographical Survey of the Territories (U.S.) (Government Printing Office, 1879)

Bulletin of the United States Geological and Geographical Survey of the Territories - Geological; Geographical Survey of the Territories (U.S.) (Government Printing Office, 1879)

Bulletin of the United States Geological and Geographical Survey of the Territories - Geological; Geographical Survey of the Territories (U.S.) (Government Printing Office, 1880)

Bulletin of the United States Geological and Geographical Survey of the Territories - Geological; Geographical Survey of the Territories (U.S.) (Government Printing Office, 1880)

Bulletin of the United States National Museum - United States National Museum (G.P.O, 1881)

Bulletin - Peabody Museum of Natural History. (The Museum, 1955)

Bulletin - Peabody Museum of Natural History. (The Museum, 1955)

Bulletin - Peabody Museum of Natural History. (The Museum, 1955)

Burma, its people and productions; or, Notes on the fauna, flora, and minerals of Tenasserim, Pegu, and Burma - Theobald, W. (William), 1829 -1908 (S. Austin, 1882)

Burpee's advance prices for 1903 : vegetable seeds and sweet peas - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W. Atlee Burpee & Co, 1903)

Burpee's advance prices for 1904 : vegetable seeds and sweet peas - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W. Atlee Burpee & Co, 1904)

Burpee's seeds that grow for 1899 : wholesale catalogue for seedsmen and dealers only who buy to sell again - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W. A. Burpee & Co, 1899)

Burpee's seeds that grow for 1901 : wholesale catalogue for market gardeners, florists, and farmer's clubs - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W. A. Burpee & Co, 1901)

Burpee's seeds that grow for 1902 : wholesale catalogue for seedsmen and dealers only who buy to sell again - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W. Atlee Burpee & Co, 1902)

Burpee's sweet peas for 1900 : preliminary wholesale prices also of vegetable seeds - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W. Atlee Burpee & Co, 1900)

Calcutta journal of natural history, and miscellany of the arts and sciences in India - McClelland, John 1805 -1883 (Bishop's College Press, 1840)

Calcutta journal of natural history, and miscellany of the arts and sciences in India - McClelland, John 1805 -1883 (Bishop's College Press, 1840)

The Cambridge natural history - Harmer, S. F. (Sidney Frederic), 1862 -1950 (Macmillan and co., limited, 1901)

The Cambridge natural history - Harmer, S. F. (Sidney Frederic), 1862 -1950 (Macmillan and co., limited, 1901)

The Cambridge natural history - Harmer, S. F. (Sidney Frederic), 1862 -1950 (Macmillan and co., limited, 1901)

The Cambridge natural history - Harmer, S. F. (Sidney Frederic), 1862 -1950 (Macmillan and co., limited, 1901)

The Cambridge natural history - Harmer, S. F. (Sidney Frederic), 1862 -1950 (Macmillan and co., limited, 1909)

The Cambridge natural history - Harmer, S. F. (Sidney Frederic), 1862 -1950 (Macmillan and co., limited, 1909)

The Cambridge natural history - Harmer, S. F. (Sidney Frederic), 1862 -1950 (Macmillan and co., limited, 1899)

The Cambridge natural history - Harmer, S. F. (Sidney Frederic), 1862 -1950 (Macmillan and co., limited, 1899)

The Cambridge natural history - Harmer, S. F. (Sidney Frederic), 1862 -1950 (Macmillan and co., limited, 1900)

The Cambridge natural history - Harmer, S. F. (Sidney Frederic), 1862 -1950 (Macmillan and co., limited, 1900)

The Cambridge natural history - Harmer, S. F. (Sidney Frederic), 1862 -1950 (Macmillan and co., limited, 1900)

The Cambridge natural history - Harmer, S. F. (Sidney Frederic), 1862 -1950 (Macmillan and co., limited, 1900)

The Cambridge natural history - Harmer, S. F. (Sidney Frederic), 1862 -1950 (Macmillan and co., limited, 1900)

The Cambridge natural history - Harmer, S. F. (Sidney Frederic), 1862 -1950 (Macmillan and co., limited, 1900)

The Cambridge natural history - Harmer, S. F. (Sidney Frederic), 1862 -1950 (Macmillan and co., limited, 1899)

The Cambridge natural history - Harmer, S. F. (Sidney Frederic), 1862 -1950 (Macmillan and co., limited, 1899)

The Canadian bird book : illustrating in natural colors more than seven hundred north American birds, also several hundred photographs of their nests and eggs - Reed, Chester A. (Chester Albert), 1876 -1912 (Musson Book Co, 1914)

The Canadian bird book : illustrating in natural colors more than seven hundred north American birds, also several hundred photographs of their nests and eggs - Reed, Chester A. (Chester Albert), 1876 -1912 (Musson Book Co, 1914)

The Canadian bird book : illustrating in natural colors more than seven hundred north American birds, also several hundred photographs of their nests and eggs - Reed, Chester A. (Chester Albert), 1876 -1912 (Musson Book Co, 1914)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2010)

Carnegie Institution of Washington publication - Carnegie Institution of Washington (Carnegie Institution of Washington, 1923)

Carnegie Institution of Washington publication - Carnegie Institution of Washington (Carnegie Institution of Washington, 1923)

Carnegie Institution of Washington publication - Carnegie Institution of Washington (Carnegie Institution of Washington, 1925)

Carnegie Institution of Washington publication - Carnegie Institution of Washington (Carnegie Institution of Washington, 1925)

Carnegie Institution of Washington publication - Carnegie Institution of Washington (Carnegie Institution of Washington, 1930)

Carnegie Institution of Washington publication - Carnegie Institution of Washington (Carnegie Institution of Washington, 1930)

Carnegie Institution of Washington publication - Carnegie Institution of Washington (Carnegie Institution of Washington, 1930)

Carnegie Institution of Washington publication - Carnegie Institution of Washington (Carnegie Institution of Washington, 1930)

Carnegie Institution of Washington publication - Carnegie Institution of Washington (Carnegie Institution of Washington, 1930)

Caroli a Linné ... Systema naturæ per regna tria naturæ, secundum classes, ordines, genera, species; cum characteribus, differentiis, synonymis, locis - Gmelin, Johann Friedrich, 1748 -1804 (apud J.B. Delamolliere, 1789)

Caroli a Linné ... Systema naturæ per regna tria naturæ, secundum classes, ordines, genera, species; cum characteribus, differentiis, synonymis, locis - Gmelin, Johann Friedrich, 1748 -1804 (apud J.B. Delamolliere, 1789)

Caroli a Linné ... Systema naturae : per regna tria natura, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis - Linné, Carl von, 1707 -1778 (Impensis direct. Laurentii Salvii, 1766)

Caroli Illigeri ... Prodromus systematis mammalium et avium additis terminis zoographicis utriusque classis, eorumque versione germanica - Illiger, Johann Karl Wilhelm, 1775 -1813 (sumptibus C. Salfeld, 1811)

Caroli a Linné. Systema naturae per regna tria naturae : secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis - Gmelin, Johann Friedrich, 1748 -1804 (impensis Georg. Emanuel. Beer, 1788)

Caroli a Linné. Systema naturae per regna tria naturae : secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis - Gmelin, Johann Friedrich, 1748 -1804 (impensis Georg. Emanuel. Beer, 1788)

Cassell's book of birds - Brehm, Alfred Edmund, 1829 -1884 (Cassell, Petter and Galpin, 1875)

Cassell's book of birds - Brehm, Alfred Edmund, 1829 -1884 (Cassell, Petter and Galpin, 1875)

Cassell's book of birds - Brehm, Alfred Edmund, 1829 -1884 (Cassell, Petter and Galpin, 1875)

Cassell's book of birds - Brehm, Alfred Edmund, 1829 -1884 (Cassell, Petter and Galpin, 1875)

Cassell's book of birds - Brehm, Alfred Edmund, 1829 -1884 (Cassell, Petter and Galpin, 1875)

Cassell's book of birds - Brehm, Alfred Edmund, 1829 -1884 (Cassell, Petter and Galpin, 1875)

Cassell's book of birds - Brehm, Alfred Edmund, 1829 -1884 (Cassell, Petter and Galpin, 1875)

Cassell's book of birds - Brehm, Alfred Edmund, 1829 -1884 (Cassell, Petter and Galpin, 1875)

Cassell's book of birds : from the text of Dr. Brehm - Brehm, Alfred Edmund, 1829 -1884 (Cassell, Petter, and Galpin, 1869)

Cassell's book of birds : from the text of Dr. Brehm - Brehm, Alfred Edmund, 1829 -1884 (Cassell, Petter, and Galpin, 1869)

Cassell's book of birds : from the text of Dr. Brehm - Brehm, Alfred Edmund, 1829 -1884 (Cassell, Petter, and Galpin, 1869)

Cassell's book of birds : from the text of Dr. Brehm - Brehm, Alfred Edmund, 1829 -1884 (Cassell, Petter, and Galpin, 1869)

Cassell's book of birds : from the text of Dr. Brehm - Brehm, Alfred Edmund, 1829 -1884 (Cassell, Petter, and Galpin, 1869)

Cassell's book of birds : from the text of Dr. Brehm - Brehm, Alfred Edmund, 1829 -1884 (Cassell, Petter, and Galpin, 1869)

Cassell's book of birds : from the text of Dr. Brehm - Brehm, Alfred Edmund, 1829 -1884 (Cassell, Petter, and Galpin, 1869)

Cassell's book of birds : from the text of Dr. Brehm - Brehm, Alfred Edmund, 1829 -1884 (Cassell, Petter, and Galpin, 1869)

Cassell's book of birds : from the text of Dr. Brehm - Brehm, Alfred Edmund, 1829 -1884 (Cassell, Petter, and Galpin, 1869)

Cassell's natural history The feathered tribes (A. Montgomery, 1854)

Castlemaine Naturalist - Australia (Castlemaine Field Naturalists Club, 2018)

Catalogo das aves do Brasil e lista dos exemplares que as representam no Museu Paulista - Pinto, Oliveiro M. de Oliveira ([Museu Paulista], 1938)

Catalogo das aves do Brasil e lista dos exemplares que as representam no Museu Paulista - Pinto, Oliveiro M. de Oliveira ([Museu Paulista], 1938)

Catalogo das aves do Brasil e lista dos exemplares que as representam no Museu Paulista - Pinto, Oliveiro M. de Oliveira ([Museu Paulista], 1938)

Catalogo das aves do Brasil e lista dos exemplares que as representam no Museu Paulista - Pinto, Oliveiro M. de Oliveira ([Museu Paulista], 1938)

Catalogos da fauna brazileira - Museu Paulista (Typ. do Diario oficial, 1907)

Catalogos da fauna brazileira - Museu Paulista (Typ. do Diario oficial, 1907)

Catalogos da fauna brazileira - Museu Paulista (Typ. do Diario oficial, 1907)

Catalogos da fauna brazileira - Museu Paulista (Typ. do Diario oficial, 1907)

Catalogue méthodique des oiseaux qui se trouvent en Europe ou qui y sont de passage ... - Siepi, Pierre. (1878)

Catalogue of birds of the Americas and the adjacent islands in Field Museum of Natural History and including all species and subspecies known to occur in North America, Mexico, Central America, South America, the West Indies, and islands of the Caribbean Sea, the Galapagos Archipelago, and other islands which may properly be included on account of their faunal affinities - Field Museum of Natural History. (1948)

Catalogue of birds of the Americas and the adjacent islands in Field Museum of Natural History and including all species and subspecies known to occur in North America, Mexico, Central America, South America, the West Indies, and islands of the Caribbean Sea, the Galapagos Archipelago, and other islands which may properly be included on account of their faunal affinities - Field Museum of Natural History. (1948)

Catalogue of birds of the Americas and the adjacent islands in Field Museum of Natural History and including all species and subspecies known to occur in North America, Mexico, Central America, South America, the West Indies, and islands of the Caribbean Sea, the Galapagos Archipelago, and other islands which may properly be included on account of their faunal affinities - Field Museum of Natural History. (1948)

Catalogue of birds of the Americas and the adjacent islands in Field Museum of Natural History and including all species and subspecies known to occur in North America, Mexico, Central America, South America, the West Indies, and islands of the Caribbean Sea, the Galapagos Archipelago, and other islands which may properly be included on account of their faunal affinities - Field Museum of Natural History. (1948)

Catalogue of birds of the Americas and the adjacent islands in Field Museum of Natural History and including all species and subspecies known to occur in North America, Mexico, Central America, South America, the West Indies, and islands of the Caribbean Sea, the Galapagos Archipelago, and other islands which may properly be included on account of their faunal affinities - Field Museum of Natural History. (1948)

Catalogue of birds of the Americas and the adjacent islands in Field Museum of Natural History and including all species and subspecies known to occur in North America, Mexico, Central America, South America, the West Indies, and islands of the Caribbean Sea, the Galapagos Archipelago, and other islands which may properly be included on account of their faunal affinities - Field Museum of Natural History. (1948)

Catalogue of mammals and birds of Burma : with a memoir, and a portrait of the author - Blyth, Edward, 1810 -1873 (Printed by S. Austin & Sons, 1875)

Catalogue of scientific papers, 1800-1863 [to 1884-1900] - Royal Society (Great Britain) (Eyre & Spottiswoode, 1867)

Catalogue of scientific papers, 1800-1863 [to 1884-1900] - Royal Society (Great Britain) (Eyre & Spottiswoode, 1867)

Catalogue of scientific papers, 1800-1863 [to 1884-1900] - Royal Society (Great Britain) (Eyre & Spottiswoode, 1868)

Catalogue of scientific papers, 1800-1863 [to 1884-1900] - Royal Society (Great Britain) (Eyre & Spottiswoode, 1868)

Catalogue of scientific papers, 1800-1863 [to 1884-1900] - Royal Society (Great Britain) (Eyre & Spottiswoode, 1868)

Catalogue of scientific papers, 1800-1863 [to 1884-1900] - Royal Society (Great Britain) (Eyre & Spottiswoode, 1871)

Catalogue of scientific papers, 1800-1863 [to 1884-1900] - Royal Society (Great Britain) (Eyre & Spottiswoode, 1871)

Catalogue of scientific papers, 1800-1863 [to 1884-1900] - Royal Society (Great Britain) (Eyre & Spottiswoode, 1871)

Catalogue of scientific papers, 1800-1863 [to 1884-1900] - Royal Society (Great Britain) (Eyre & Spottiswoode, 1879)

Catalogue of scientific papers, 1800-1863 [to 1884-1900] - Royal Society (Great Britain) (Eyre & Spottiswoode, 1879)

Catalogue of scientific papers, 1800-1863 [to 1884-1900] - Royal Society (Great Britain) (Eyre & Spottiswoode, 1879)

Catalogue of the Birds in the British Museum - British Museum (Natural History). Department of Zoology. [Birds]. (1898)

Catalogue of the Birds in the British Museum - British Museum (Natural History). Department of Zoology. [Birds]. (1898)

Catalogue of the Birds in the British Museum - British Museum (Natural History). Department of Zoology. [Birds]. (1898)

Catalogue of the Birds in the British Museum - British Museum (Natural History). Department of Zoology. [Birds]. (1898)

Catalogue of the Birds in the British Museum - British Museum (Natural History). Department of Zoology. [Birds]. (1898)

Catalogue of the Birds in the British Museum - British Museum (Natural History). Department of Zoology. [Birds]. (1898)

Catalogue of the Birds in the British Museum - British Museum (Natural History). Department of Zoology. [Birds]. (1898)

Catalogue of the Collection of Birds' Eggs in the British Museum - Oates, Eugene William, 1845 -1911 (1902)

Catalogue of the Collection of Birds' Eggs in the British Museum - Oates, Eugene William, 1845 -1911 (1902)

Catalogue of the specimens and drawings of mammalia and birds of Nepal and Thibet - British Museum (Natural History) (By order of the Trustees, 1846)

Catalogue of the specimens illustrating the osteology of vertebrated animals, recent and extinct, contained in the Museum of the Royal College of Surgeons of England Part III Class Aves - Sharpe, Richard Bowdler, 1847 -1909 (1891)

Catalogue of the specimens illustrating the osteology of vertebrated animals, recent and extinct, contained in the Museum of the Royal College of Surgeons of England Part III Class Aves - Sharpe, Richard Bowdler, 1847 -1909 (1891)

Catalogue of the specimens illustrating the osteology of vertebrated animals, recent and extinct, contained in the Museum of the Royal College of Surgeons of England Part III Class Aves - Sharpe, Richard Bowdler, 1847 -1909 (1891)

Catalogue systématique et raisonné des curiosités de la nature et de l'art, qui composent le cabinet de M. Davila ... - Dávila, Pedro Francisco, 1713 -1785 (Chez Briasson, 1767)

CBC newsletter - Carolina Bird Club (Carolina Bird Club, 1992)

The Century dictionary : an encyclopedic lexicon of the English language: prepared under the superintendence of William Dwight Whitney - Whitney, William Dwight, 1827 -1894 (Century Co, 1889)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1931)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1931)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1931)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1979)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1979)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1979)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1979)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1979)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1979)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1979)

Check-list of birds of the world - Traylor, Melvin A. (Melvin Alvah), 1915 -2008 (Harvard University Press, 1979)

Check-list of North American birds - American Ornithologists' Union. (American Ornithologists' Union, 1895)

Check-list of North American birds - American Ornithologists' Union. (American Ornithologists' Union, 1895)

Check-list of North American birds - American Ornithologists' Union. (1957)

A check list of North American birds - Coues, Elliott, 1842 -1899 (F.W. Putnam, 1879)

Check-list of North American birds - American Ornithologists' Union. (1957)

Check-list of North American birds - American Ornithologists' Union. (1957)

A check list of North American birds - Coues, Elliott, 1842 -1899 (Estes and Lauriat, 1882)

Check-list of North American birds - American Ornithologists' Union. (American ornithologists' union, 1910)

Check-list of North American birds - American Ornithologists' Union. (American ornithologists' union, 1910)

Check-list of North American birds - American Ornithologists' Union. (American ornithologists' union, 1910)

Check-list of North American birds - American Ornithologists' Union. (American ornithologists' union, 1910)

Check-list of North American birds - American Ornithologists' Union. (American Ornithologists' Union, 1895)

Check-list of North American birds - American Ornithologists' Union. (American ornithologists' union, 1910)

Check-list of North American birds - American Ornithologists' Union. (American Ornithologists' Union, 1895)

Check-list of North American birds - American Ornithologists' Union. (American Ornithologists' Union, 1895)

Check-list of North American birds - American Ornithologists' Union. (American Ornithologists' Union, 1895)

Check-list of North American birds : according to the canons of nomenclature of the American Ornithologists' Union - American Ornithologists' Union. (The Union, 1889)

Check-list of North American birds : according to the canons of nomenclature of the American Ornithologists' Union - American Ornithologists' Union. (The Union, 1889)

Check-list of North American birds : according to the canons of nomenclature of the American Ornithologists' Union - American Ornithologists' Union. (The Union, 1889)

A check list of North American birds - Coues, Elliott, 1842 -1899 (Naturalists' Agency, 1874)

A check list of North American birds - Coues, Elliott, 1842 -1899 (Naturalists' Agency, 1874)

Check-list of North American birds - American Ornithologists' Union. (The Union, 1931)

Check-list of North American birds - American Ornithologists' Union. (The Union, 1931)

Check-list of North American birds - American Ornithologists' Union. (The Union, 1931)

Check-list of North American birds - American Ornithologists' Union. (The Union, 1931)

Check-list of North American birds - American Ornithologists' Union. (The Union, 1931)

Check-list of North American birds - American Ornithologists' Union. (The Union, 1931)