844 



Life-histories of Northern Animals 



not know where the limit is drawn. The argument of analogy 

 would lead us to believe that in the case of the Brown Weasel, 

 a ten-mile round would probably represent the wanderings of 

 the individual. 



POPULA- 

 TION 



There are doubtless several Weasels to each square mile 

 in the wooded country. I found this species common about 



Fig. 204 — Head of Short-tailed Weasel ^. 



Sketched in the flesh rA Winnipeg. Aug. 25. 1904 (life size). This is somewhat abnonnal 



Carberry, Dauphin, Winnipeg, and Ingolf. Kennicott says 

 it appears to be abundant along Red River. 



In the winter of igoo-i, it was extraordinarily numerous 

 in Manitoba. 



George H. Measham writes me from Woonona, Shoal 

 Lake, January 17, 1901 : "Charles Tweddell has trapped over 

 40 of them just around the shore where the boats were. It 

 is strange how these animals seem suddenly to get numerous 

 and as suddenly disappear." 



R. MacFarlane records' that in 1903 the Hudson's Bay 

 Company exported 33,883 Ermine skins; probably half were 

 of this species. But this destruction makes no obvious differ- 

 ence in their numbers. 



' Mam. N. W. Tcr., Proc. U. S. N. M., Vol. XXVIII, 1905, p. 713. 



