By Sharpe, Richard Bowdler, 1847-1909 . Genre Birds / Great Britain . Names adult / sea / iris / mus / bacterium o and 3049 more

By Buffon, Georges Louis Leclerc, comte de, 1707-1788 . Genre Natural history / Birds / Fishes / Entomology / Laboratory manuals . Names animal / fish / insects / animals / leaves and 1552 more

By Howe, Reginald Heber, 1846-1924 / Sturtevant, Edward. . Genre n-us-ri / Birds / Rhode Island . Names island / rhode / american / rock / mus and 1412 more

By Brown, Robert, 1842-1895 . Genre n-cn-bc / Birds / British Columbia / Vancouver Island / Ornithology and 8 more . Names island / synopsis / american / victoria / zonotrichia and 292 more

By Bradley, O. Charnock (Orlando Charnock), 1871-1937 . Genre Birds / Anatomy . Names area / eye / feather / adult / iris and 432 more

By Howard, Henry Eliot, 1873-1940 . Genre Birds / Behavior / Territoriality (Zoology) . Names life / area / order / none / wood and 623 more

By Bendire, Charles, 1836-1897 . Genre Birds / North America / Birds / Nests . Names california / life / mexico / arizona / american and 6054 more

By Minot, H. D. (Henry Davis), 1859-1890 . Genre Birds / New England . Names insects / wood / called / spotted / eye and 2155 more

By Macgillivray, William, 1796-1852 . Genre e-uk--- / Birds / Great Britain . Names insects / spotted / eye / seeds / turdus and 2118 more

By Bird Man. . Genre n-us--- / Bird attracting / Birds / Food / Berries and 1 more . Names fruit / berries / smilax / sweet / seeds and 128 more