APPENDIX D 

 History of the Ural-Tweed bighorn sheep population and 

 related studies. 



1934 U.S. Forest Service-*- - estim^ed 145 bighorn sheep within 

 the Kootenai National Forest^ (Kl^). 



1935 Bealey and West (1935) - U.S.F.S. - the herd is increasing 

 and spreading out. 



1936 Drum heller - (1936) U.S. F.S. - Estimated 53 bighorn sheep in 

 the Rexford District and observed sheep 31 during drainage 

 searches on the War land District. 



U.S. Forest Service - estimated 128 bighorn sheep within the 

 KNF. 



1937 Ensign (1937) - U.S.F.S. - conducted an intensive winter big- 

 horn sheep survey. Actual count : 97 (16 rams, 49 ewes, 22 

 lambs). Illegal kill was thought to be high. 



U.S. Forest Service-^ - estimated 100 bighorn sheep witliin 

 the KIxIF. 



1938 U.S. Forest Service - estimated 120 bighorn sheep within thp 

 KNF. 



1939 U.S. Forest Service - estimated 110 bighorn sheep within the 



KNF. 



1940 I. Anderson (1940) - U.S.F.S. - estimated the population at 

 100 animals, and the numbers have been decreasing during the 

 last 20 years. 



U.S. Forest Service - estimated 130 bighorn sheep within the 

 KNF. 



1941 Brink (1941) - U.S.F.S. - conducted an intensive winter and 

 spring survey of the herd. He estimated the population at 

 100 head (25 mature rams, 50 ewes, 25 yearlings). He did not 

 include the 1941 lamb crop in his estimate. 



U.S. Forest Service - estimated there were 150 bighorn sheep 

 within the KNF. 



1942 U.S. Forest Service - estimated there were 155 bighorn sheep 

 within the KW. 



1943 U.S. Forest Service - estimated there were 145 bighorn sheep 

 within the KW. 



Dl 



