Say's Ground Squirrel 167 
seeds and acorns. It comes around camps for any food which 
may be thrown out, and frequently becomes very tame, 
even taking food from the hand. The breeding season varies 
with altitude, and young are out of the holes from the middle 
of May until the middle of July. Four to six young are born 
in a litter. A family of six half-grown young were found at 
FIG. 55. say's ground squirrel, Callospermophilus lateralis 
From life, E. R. Warren, Photo. 
Crested Butte, altitude 9,000 feet, July 8th, while at Yarmony 
Creek, altitude 6,800 feet, young of equal size were out May 
23d. It is possible there may be two litters in a season, but 
there is no evidence to that effect. 
The animal goes into hibernation in early October, re- 
appearing in early April. At Crested Butte it has been known 
