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

The birds of Rhode Island - Howe, Reginald Heber, Jr. 1875 -1932 (1899)

The birds of Rhode Island - Howe, Reginald Heber, Jr. 1875 -1932 (s.n.], 1899)

The birds of Somerset Hills - Kuser, John Dryden (Published by the author, 1912)

Birds of South Carolina - Wayne, Arthur Trezevant, 1863 -1930 ([The Daggett Printing Co.], 1910)

Birds of South Dakota - Thoms, Craig S. (Craig Sharp), 1860 -1945 (University of South Dakota, 1920)

The birds of Springfield and vicinity - Morris, Robert O. (H.R. Johnson, 1901)

The birds of Springfield and vicinity - Morris, Robert Oliver, 1846 -1925 (H. R. Johnson, 1901)

Birds of Swope park in the heart of America, Kansas City, Mo - Shirling, Albert E. (McIndoo publishing company, 1920)

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

Birds of the Boston Public Garden, a study in migration - Wright, Horace Winslow (Houghton Mifflin co, 1909)

Birds of the Boston Public Garden : a study in migration - Wright, Horace Winslow (Houghton Mifflin Co, 1909)

Birds of the Bowdoin College Expedition to Labrador in 1891 - Norton, Arthur H. (1901)

The birds of the Cambridge region of Massachusetts - Brewster, William, 1851 -1919 (The Club, 1906)

The birds of the Chicago area - Woodruff, Frank Morley (Jennings and Graham], 1907)

The birds of the Chicago area - Woodruff, Frank Morley (Printed by Jennings and Graham], 1907)

Birds of the Chukchi Peninsula and Wrangel Island = (Ptitsy Chukotskogo poluostrova i ostrova Vrangelya) - Portenko, L. A. (Leonid Aleksandrovich), 1896 -1972 (Published for the Smithsonian Institution and the National Science Foundation, Washington, D.C., by Amerind Pub. Co, 1989)

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 Colorado valley ... scientific and popular information concerning North American ornithology - Coues, Elliott, 1842 -1899 (Gov't print. off, 1878)

Birds of the Colorado valley ... scientific and popular information concerning North American ornithology - Coues, Elliott, 1842 -1899 (Govt. Print. Off, 1878)

Birds of the Huachuca mountains, Arizona - Swarth, Harry S. (Harry Schelwald), 1878 -1935 (The Club, 1904)

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)

The birds of the Lake St. Martin region, Manitoba - Royal Ontario Museum of Zoology. (Royal Ontario Museum of Zoology], 1937)

The birds of the Ligonier Valley - Leberman, Robert C. (Carnegie Museum of Natural History, 1976)

Birds of the New York city region - Linnaean Society of New York ([American Museum of Natural History], 1923)

Birds of the Northwest: a hand-book of the ornithology of the region drained by the Missouri River and its tributaries - Coues, Elliott, 1842 -1899 (Govt. Print. Off, 1874)