A Field Guide to the Mammals: Field Marks of All North American Species Found North of Mexico
Each guide employs the Peterson Identification system which pinpoints key field marks for quick recognition of species and easy comparisons of confusing look-alikes. Provide up-to-date range information.
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16 teeth 20 teeth acre areas belly blackish Born Breeds brownish brush burrows California Cave Myotis caves CHIPMUNK Eutamias color Cottontail dark brown Deer desert Dolphin dorsal fin ears EASTERN Eastern Cottontail Eastern Gray Squirrel Economic status Feeds feet females Field Guide forests Fringed Myotis gestation period gray grayish grooved Habitat Habits hairs HARVEST MOUSE Head and body Home range Identification incisors insects larger LEMMING litters Longtail lower jaw males mammae mammals Map opposite MOUSE Peromyscus nest nose Pacific pale Perognathus Phenacomys Pocket Gopher Pocket Mice POCKET MOUSE Perognathus prairies Pygmy reddish rump SHREW Sorex sides Similar species Skull has 20 Skull Plate 25 smaller Sorex SOUTHERN BOG LEMMING stripes tawny tip on tail Townsend trees upper incisors usually vegetation WESTERN HARVEST MOUSE WESTERN MASTIFF BAT WHITETAIL whitish winter Woodrat yellowish Young Yuma Myotis