it is, with only the few specimens we have, when they are mixed 

 together and labels hidden, the San Luis specimens can be readily 

 picked out. 



The food of the striped ground-squirrels consist of grain of 

 all kinds, but corn is their favorite food. They also eat weed seeds 

 of various kinds, and in the fall are very fond of the seed of the 

 Buffalo-bur (Solamim rostratum). They also eat grasshoppers, 

 crickets, cutworms and beetles in large numbers and, in confinement 

 at least, will catch and devour mice with the eagerness of a cat. 

 They sometimes take on the habit of killing and eating small 

 chickens also. 



Genus Eutamias (Chipmunks) 

 The members of this genus are active little creatures, with 

 slightly bushy tails and longitudinal body stripes, five dark and 

 four light, and internal cheek pouches, which they use to carry 

 food. They are equally at home among the rocks, sage brush or 

 cactus. Their characteristic flit of tail and sharp clatter makes 

 them conspicuous objects. 



Colorado Species. 



Utah Chipmunk, Eutamias dorsalis utahensis. 



Colorado Chipmunk, Eutamias quadrivittatus quadrivittatns. 



Las Animas Chipmunk, Eutamias quadrivittatus animosus. 



Hopi Chipmunk, Eutamias hopiensis. 



Busy Chipmunk, Eutamias amoenus operarius. 



Least Chipmunk, Eutamias minimus. 



Related Chipmunk, Eutamias minimus consohrinus. 



Cary's Chipmunk, Eutamias minimus caryi. 



Chipmunks inhabit all the sections of the State from the east- 

 ern base of the foothills to the western line, and parts of eastern 

 Las Animas and western Baca Counties. 



Chipmunks feed on grain and seeds of various kinds. They 

 are very fond of the seeds of juniper berries, and of the haw- 

 thorn. I shot one at Spring Canon, Larimer County, out of a haw- 

 thorn bush that had in its cheek pouches 48 seeds of the 

 latter berry. They feed extensively on the seeds of the moun- 

 tain maple, and prickley pear also. I shot one that had in its 

 cheek pouches 29 seeds of this cactus. Just how they extract these 

 seeds without getting a mouthful of the small spines that covers 

 the pears, I am unable to say. 



When abundant they make themselves a general nuisance 

 around gardens, but are easy to control with poisoned grain. 



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