254 A NATURALIST IN THE GREAT LAKES REGION 



gray-brown above, white below, with gray feet and white 

 toes, is fairly common. It is quite like the white-footed deer 



mouse (Fig. 287) but 

 this has pure white 

 feet. The Pennsyl- 

 vania meadow mouse 

 is more prevalent in 

 the wet prairie. 

 Certain birds nest on 

 the ground of the 

 open prairie; the 

 most characteristic 

 are the bobolink, the 

 meadow lark, its nest 



Fig. 377 Fig. 378 



Figs. 377, 378: Fig. 377.— Prairie clover, Peta- ^^ ^he end of a grassy 

 lostcmmn purpnrciim; Fig. 378.— Lead plant, ylwor- tunnel, the dickcissel, 



pha cancscens. ^-j^g vesper spar row, 



the grasshopper sparrow, the prairie horned lark, the lark 

 bunting, and the prairie chicken. The first three mentioned 



Fig. 379. — Chimney of burrowing crayfish, Cambarus diogcnes 



