THE GRAY MARMOT 



209 



strongly differentiated by its light, grizzly-gray color, with 

 certain dark markings. It is found from the Columbia River 

 northward to about 63° North Latitude and eastward to 

 Hudson Bay. It derives one of its names from the fact 



iril*«JE.If^«! 



WOODCHUCK. 



that its alarm cry consists of a shrill whistle, which is re- 

 peated by the various members of the colony threatened 

 with danger. Often it is found in rocky mountain valleys, 

 high up, with the pika as its nearest neighbor. 



The Yellow-Bellied Marmot,^ easily distinguished by 

 the bright-red hair on its under-parts, is a Southern species, 



' Mar-mo'ta fiav'i-ven-ter. 



