MAMMALIA 



623 



to the West Coast iu shallow burrows in the open fields or low brush. 

 The striped spermophile is a common midwestern form. The chip- 

 munk, Tamias striatus, a small striped squirrel, with a slender non- 

 bushy tail, usually lives on the border of the woods. It feeds 



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Fig. 335. — Prairie dog, Gynomvs ludovicianus. Lived in large colonies or "towns" 

 in great abundance over the prairie country at one time. 



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Fig. 336. — Pocket gopher, Geomys bursar ius. A burrowing rodent with destructive 



habits. 



on seeds and nuts which it usually stores for times of need. The 

 squirrels are excellent tree climbers and in fact live in trees most of 

 the time. The red squirrel, Douglass squirrel, gray squirrel, Abert 

 squirrel, fox squirrel, and flying squirrel are the common species. 

 The gray squirrel is more common in the South while the Abert is 

 found in the Rocky Mountain region and the Douglass is the Pacific 



