The birds of Celebes and the neighbouring islands - Meyer, Adolf Bernhard, 1840 -1911 (R. Friedländer & Sohn, 1898)

The birds of Chile - Hellmayr, Carl Eduard, 1878 -1944 (Field Museum of Natural History, 1932)

Birds of Cimarron National Grassland - Rocky Mountain Forest; Range Experiment Station (Fort Collins, Colo.) (U.S. Dept. of Agriculture, Forest Service, Rocky Mountain, Forest and Range Experiment Station, 1996)

The birds of Connecticut - State Geological; Natural History Survey of Connecticut. (Printed for the State Geological and Natural History Survey, 1913)

The birds of Connecticut - Bishop, Louis B. (Louis Bennett), 1865 -1950 (Printed for the State Geological and Natural History Survey, 1913)

Birds of Darjeeling and India - Mackintosh, L. J. (Printed by J.N. Banerjee & son, 1915)

Birds of eastern Canada - Taverner, P. A. (Percy Algernon), 1875 -1947 (J. de L. Tachprinter, 1919)

The birds of eastern North America known to occur east of the ninetieth meridian - Field Museum of Natural History. (Bay State Pub. Co, 1900)

The birds of El Salvador - Dickey, Donald R. (Donald Ryder), 1887 -1932 (Field Museum of Natural History, 1938)

The birds of Guyana (formerly British Guinna) : a check list of 720 species - Snyder, Dorothy Eastman. (Peabody Museum, 1966)

The birds of Illinois and Wisconsin - Cory, Charles B. (Charles Barney), 1857 -1921 (Field Museum of Natural History, 1909)

The birds of Illinois and Wisconsin - Cory, Charles B. (Charles Barney), 1857 -1921 (1909)

The birds of Lincolnshire - Lincolnshire Naturalists' Union. (Lincolnshire Naturalists' Union, 1955)

Birds of Madison County, New York - Embody, George Charles, 1876 -1939 ([Republican Press], 1901)

Birds of Maryland and the District of Columbia - Robbins, Chandler S. (U.S. Dept. of the Interior, Fish and Wildlife Service, 1958)

Birds of Michigan - Cook, Albert John, 1842 -1916 (R. Smith & co., state printers and binders, 1893)

The birds of New England and adjacent states : ... arranged by a long-approved classification and nomenclature ... with illustrations of many species of the birds and accurate figures of their nests and eggs - Samuels, Edward A. (Edward Augustus), 1836 -1908 (Noyes, Holmes, and company, 1872)

The birds of New England and adjacent states ... : arranged by a long-approved classification and nomenclature ... with illustrations of many species of the birds, and accurate figures of their eggs - Samuels, Edward A. (Edward Augustus), 1836 -1908 (Lockwood, Brooks, 1880)

The birds of New England and adjacent states : containing descriptions of the birds of New England, and adjoining states and provinces, arranged by a long-approved classification and nomenclature ... with illustrations of many species of the birds, accurate figures of their nests and eggs - Samuels, Edward A. (Edward Augustus), 1836 -1908 (Noyes, Holmes, and company, 1875)

The birds of New England - Samuels, Edward A. (Edward Augustus), 1836 -1908 (Noyes, Holmes, 1870)

Birds of New Mexico - Bailey, Florence Merriam, 1863 -1948 (New Mexico Dept. of game and fish, 1928)

Birds of New York - Eaton, Elon Howard, 1866 -1934 (University of the State of New York, 1914)

The birds of North America : the descriptions of species based chiefly on the collections in the Museum of the Smithsonian Institution - Baird, Spencer Fullerton, 1823 -1887 (J.B. Lippincott & Co, 1860)

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 - Ridgway, Robert, 1850 -1929 (Govt. Print. Off, 1901)

The birds of Ohio; a complete scientific and popular description of the 320 species of birds found in the state - Dawson, William Leon, 1873 -1928 (The Wheaton Publishing Co, 1903)

The birds of Ohio; a complete scientific and popular description of the 320 species of birds found in the state - Dawson, William Leon, 1873 -1928 (The Wheaton publishing co, 1903)

The birds of Ohio; a complete scientific and popular description of the 320 species of birds found in the state - Dawson, William Leon, 1873 -1928 (Wheaton Pub. Co, 1903)

The birds of Ontario : being a list of birds observed in the province of Ontario, with an account of their habits, distribution, nests, eggs, &c - McIlwraith, Thomas, 1824 -1903 (Hamilton Association, 1886)

Birds of Oregon - Gabrielson, Ira Noel, 1889 -1977 (Pub. by Oregon State College through the O.S.C. Cooperative Association, 1940)

Birds of Samoa ; a manual of ornithology of birds inhabiting these islands - Mitchell, Mason. (Printed on the London missionary society's press, Malua, 1909)

The birds of Texas; an annotated check-list - Strecker, John K. (John Kern), 1875 -1933 (The University, 1912)

The birds of the Assyrian monuments and records - Houghton, W. (William), 1828 -1895 (1884)

The birds of the Bahama Islands : containing many birds new to the Islands, and a number of undescribed winter plumages of North American birds - Cory, Charles B. (Charles Barney), 1857 -1921 (Estes & Lauriat, 1890)

Birds of the Cleveland region; a check list of species reported within approximately 30 miles of the Cleveland Public Square - Cleveland Museum of Natural History (Cleveland Museum of Natural History, 1950)

Birds of the Crane Pacific expedition - Mayr, Ernst, 1904 -2005 (Field Museum of Natural History, 1938)

Birds of the Harold Hall Australian Expeditions, 1962-1970 : a report on the collections made for the British Museum (Natural History) - Hall, B. P. (Beryl Patricia) (Trustees of the British Museum, 1974)

The birds of the Japanese Empire - Seebohm, Henry, 1832 -1895 (R. H. Porter, 1890)

Birds of the Kansas City region - Harris, Harry, 1878 - (Academy of Sciences of St. Louis], 1919)

Birds of the Kansas City region - Harris, Harry, 1878 - (1919)

Birds of the Monongahela National Forest : a checklist - United States. Forest Service. (Forest Service, Dept. of Agriculture, 1996)

Birds of the Nebraska Pine Ridge : Nebraska National Forest (Pine Ridge Ranger District) and Oglala National Grassland - Peterson, Richard A. (Nebraska National Forest, Pine Ridge Ranger District?, 1993)

Birds of the Nebraska Sandhills : Samuel R. McKelvie National Forest and Nebraska National Forest (Bessey Ranger District) - Bessey Ranger District (Neb.) (Nebraska National Forest, Bessey Ranger District, 1993)

Birds of the Schrader Mountain region, New Guinea : results of the American Museum of Natural History expedition to New Guinea in 1964 - LeCroy, Mary (American Museum of Natural History, 1968)

Birds of the southern Lesser Antilles - Clark, Austin Hobart, 1880 -1954 (Printed for the Society of Natural History, 1905)

Birds of the St. Croix River Valley, Minnesota and Wisconsin - Faanes, Craig A. (Fish and Wildlife Service, 1981)

Birds of the West; an account of the lives and the labors of our feathered friends - Holmes, Charles Edgar (Hammond & Stephens co, 1907)

The birds of the West Indies : including all species known to occur in the Bahama Islands, the Greater Antilles, the Caymans, and the Lesser Antilles, excepting the islands of Tobago and Trinidad - Cory, Charles B. (Charles Barney), 1857 -1921 (Estes & Lauriat, 1889)

Birds of the White-Fuller Expedition to Kenya, East Africa - Oberholser, Harry C. (Harry Church), 1870 -1963 (Cleveland Museum of Natural History, 1945)

The birds of Washington : a complete, scientific and popular account of the 372 species of birds found in the state - Bowles, John Hooper, 1875 -1934 (Occidental Pub. Co, 1909)

The birds of Washington; a complete, scientific and popular account of the 372 species of birds found in the state - Bowles, John Hooper, 1875 -1934 (The Occidental Pub. Co, 1909)

Birds of western Canada - Taverner, P. A. (Percy Algernon), 1875 -1947 (King's Printer, 1926)

Birds of western New York - Eaton, Elon Howard, 1866 -1934 (The Society, 1901)

The birds of Wyoming, with an explanation of recent changes in their distribution; economic aspect also considered - Grave, B. H. (Benjamin Harrison), 1878 -1949 (University of Wyoming, 1913)

Birds protected by federal law - U.S. Fish; Wildlife Service (U.S. Dept. of the Interior, Fish and Wildlife Service, 1950)

Blood immunity and blood relationship; a demonstration of certain blood-relationships amongst animals by means of the precipitin test for blood - Nuttall, George Henry Falkiner, 1862 -1937 (University press, 1904)

Blue jay - Saskatchewan Natural History Society. (Saskatchewan Natural History Society, 1982)

Blue jay - Saskatchewan Natural History Society. (Saskatchewan Natural History Society, 2012)

Boletim biológico (A Sociedade, 1933)

Boletim do Museu Goeldi (Museu Paraense) de Historia Natural e Ethnographia - Museu Goeldi. (Estabelecimento Graphice de C. Wiegandt, 1906)

Boletim do Museu Goeldi (Museu Paraense) de Historia Natural e Ethnographia - Museu Goeldi. (Estabelecimento Graphice de C. Wiegandt, 1907)

Boletim do Museu Goeldi (Museu Paraense) de Historia Natural e Ethnographia - Museu Goeldi. (Estabelecimento Graphice de C. Wiegandt, 1911)

Boletim do Museu Paraense de Historia Natural e Ethnographia (Museu Goeldi) - Museu Goeldi. (Typ. e Encadernação do Instituto Lauro Sodré, 1900)

Boletim do Museu Paraense Emílio Goeldi Série ciências naturais - Museu Paraense Emílio Goeldi (O Museu, 2011)

Boletim do Museu Rocha (O Museu, 1911)

Boletin de la Academia Nacional de Ciencias en Córdoba, República Argentina - Academia Nacional de Ciencias (Córdoba, Argentina) (Academia Nacional de Ciencias, 1887)

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Bollettino della Società adriatica di scienze naturali in Trieste - Società adriatica di scienze naturali in Trieste. (La Editoriale Libraria, 1885)

Bollettino della Società adriatica di scienze naturali in Trieste - Società adriatica di scienze naturali in Trieste. (La Editoriale Libraria, 1889)

Bollettino della Società adriatica di scienze naturali in Trieste - Società adriatica di scienze naturali in Trieste. (La Editoriale Libraria, 1896)

Bollettino della Società adriatica di scienze naturali in Trieste - Società adriatica di scienze naturali in Trieste. (La Editoriale Libraria, 1898)

Bollettino della Società adriatica di scienze naturali in Trieste - Società adriatica di scienze naturali in Trieste. (La Editoriale Libraria, 1903)

Bollettino della Società adriatica di scienze naturali in Trieste - Società adriatica di scienze naturali in Trieste. (La Editoriale Libraria, 1907)

Bollettino della Societá romana per gli studi zoologici - Societá romana per gli studi zoologici. (La Societá, 1892)

Bollettino della Societá romana per gli studi zoologici - Societá romana per gli studi zoologici. (La Societá, 1898)

Bollettino della Società zoologica italiana - Società zoologica italiana. (La Società, 1902)

Bollettino della Società zoologica italiana - Società zoologica italiana. (La Società, 1909)

Bollettino della Società zoologica italiana - Società zoologica italiana. (La Società, 1900)

Bonn zoological bulletin - Zoologisches Forschungsmuseum Alexander Koenig. (Zoologisches Forschungsmuseum Alexander Koenig, 2010)

Bonn zoological bulletin - Zoologisches Forschungsmuseum Alexander Koenig. (Zoologisches Forschungsmuseum Alexander Koenig, 2014)

Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn - Zoologisches Forschungsinstitut und Museum Alexander Koenig. (Das Forschungsinstitut, 1950)

Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn - Zoologisches Forschungsinstitut und Museum Alexander Koenig. (Das Forschungsinstitut, 1953)

Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn - Zoologisches Forschungsinstitut und Museum Alexander Koenig. (Das Forschungsinstitut, 1957)

Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn - Zoologisches Forschungsinstitut und Museum Alexander Koenig. (Das Forschungsinstitut, 1960)

Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn - Zoologisches Forschungsinstitut und Museum Alexander Koenig. (Das Forschungsinstitut, 1962)

Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn - Zoologisches Forschungsinstitut und Museum Alexander Koenig. (Das Forschungsinstitut, 1974)

Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn - Zoologisches Forschungsinstitut und Museum Alexander Koenig. (Das Forschungsinstitut, 1977)

Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn - Zoologisches Forschungsinstitut und Museum Alexander Koenig. (Das Forschungsinstitut, 1976)

Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn - Zoologisches Forschungsinstitut und Museum Alexander Koenig. (Das Forschungsinstitut, 1978)

Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn - Zoologisches Forschungsinstitut und Museum Alexander Koenig. (Das Forschungsinstitut, 1983)

Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn - Zoologisches Forschungsinstitut und Museum Alexander Koenig. (Das Forschungsinstitut, 1986)

Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn - Zoologisches Forschungsinstitut und Museum Alexander Koenig. (Das Forschungsinstitut, 2003)

Bonner zoologische Monographien (Zoologisches Forschungsinstitut und Museum Alexander Koenig, 1973)

Bonner zoologische Monographien (Zoologisches Forschungsinstitut und Museum Alexander Koenig, 1975)

Bonner zoologische Monographien (Zoologisches Forschungsinstitut und Museum Alexander Koenig, 1987)

Bonner zoologische Monographien (Zoologisches Forschungsinstitut und Museum Alexander Koenig, 1995)

Bonner zoologische Monographien (Zoologisches Forschungsinstitut und Museum Alexander Koenig, 2005)

Bonner zoologische Monographien (Zoologisches Forschungsinstitut und Museum Alexander Koenig, 2011)

The breeding seasons of East African birds - Brown, Leslie, 1917 -1980 (East Africa Natural History Society, 1980)

Brehms thierleben, allgemeine kunde des thierreichs - Brehm, Alfred Edmund, 1829 -1884 (Verlag des Bibliographischen instituts, 1878)

Brehms Tierbilder : 60 farbige Tafeln aus "Brehms Tierleben" - Franz, Victor, 1883 -1950 (Bibliographisches Institut, 1913)

Brehms Tierleben; allgemeine kunde des thierreichs. Mit 1910 abbildungen im text, 11 karten und 180 tafeln in farbendruck und holzschnitt - Brehm, Alfred Edmund, 1829 -1884 (Bibliographisches Institute, 1893)

Brehms Tierleben : allgemeine Kunde des Tierreichs : mit 1800 Abbildungen im Text, 9 Karten und 180 Tafeln in Farbendruck und Holzschnitt - Brehm, Alfred Edmund, 1829 -1884 (Bibliographisches Institut, 1891)

Brehms Tierleben. Allgemeine kunde des Tierreichs - Werner, Franz, 1867 -1939 (Bibliographisches Institut, 1911)

Brigham Young University science bulletin Biological series - Brigham Young University. (Brigham Young University, 1963)