William W. H. Gunn
23 May 1961
- Waterton Lakes Nat. Park; Red Rocks Trail
- NAGRA III
NOTES: High-pitched alarm (?) whistle This animal had burrows near a gravel bank and whistled at approach of Max and myself. Also: sound of water run-off. Scold of bird or chipmunk? Q 2; Nagra serial # N60-301.