Books in Animal (sorted by popularity)
- A Quantitative Study of the Nocturnal Migration of Birds Jr. George H. Lowery 105 downloads
- The Woodpeckers Fannie Hardy Eckstorm 104 downloads
- The Breeding Birds of Kansas Richard F. Johnston 103 downloads
- Mammals of the San Gabriel Mountains of California Terry A. Vaughan 103 downloads
- Selected Records of Reptiles and Amphibians from Kansas Hobart M. Smith and John Breukelman 102 downloads
- Natural History of the Prairie Vole (Mammalian Genus Microtus) E. W. Jameson 101 downloads
- Fishes of Chautauqua, Cowley and Elk Counties, Kansas Artie L. Metcalf 101 downloads
- The Adductor Muscles of the Jaw In Some Primitive Reptiles Richard C. Fox 101 downloads
- Mammals of the Grand Mesa, Colorado Sydney Anderson 101 downloads
- Thoracic and Coracoid Arteries In Two Families of Birds, Columbidae and Hirundinidae Marion Anne Jenkinson 100 downloads
- On the Origin and Metamorphoses of Insects Sir John Lubbock 100 downloads
- Birds, Illustrated by Color Photography, Vol. 2, No. 3 Various 100 downloads
- Fish Stories Henry Abbott 100 downloads
- Occurrence of the Garter Snake, Thamnophis sirtalis, in the Great Plains and Rocky Mountains Henry S. Fitch and T. Paul Maslin 98 downloads
- Birds, Illustrated by Color Photography, Vol. 1, No. 3 Various 98 downloads
- Illustrative Anecdotes of the Animal Kingdom Samuel G. Goodrich 97 downloads
- A Taxonomic Revision of the Leptodactylid Frog Genus Syrrhophus Cope John D. Lynch 97 downloads
- A Synopsis of the American Bats of the Genus Pipistrellus E. Raymond Hall and Walter Woelber Dalquest 96 downloads
- Fur Farming A. R. Harding 96 downloads
- Mink Trapping: A Book of Instruction Giving Many Methods of Trapping A. R. Harding 94 downloads
- Territory in Bird Life Henry Eliot Howard 94 downloads
- British Butterflies: Figures and Descriptions of Every Native Species W. S. Coleman 91 downloads
- Journal of Entomology and Zoology, Vol. 11, No. 2, June 1919 Various 91 downloads
- Methods of Destroying Rats David E. Lantz 90 downloads
- Speciation and Evolution of the Pygmy Mice, Genus Baiomys Robert L. Packard 90 downloads