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420 BIG GAME SHOOTING 
but though I have spent many seasons amongst mule deer, in 
British Columbia and elsewhere, I have never yet heard them ' 
whistle, nor heard any mention of this habit from the natives — 
or white hunters. However, I am not prepared to say thatthey — 
do not whistle. : 
More than any other American deer with which I am ; 
Abnormal head of mule deer 
acquainted, C. macrotis migrates with the seasons, passing in 
large numbers from his summer feeding grounds on the uplands 
to the green timber districts of the lower country. This mi; 
tion seems to begin with the first heavy snows, but it is not 
invariable rule, for I have seen big bucks in the Chilcot 
