Predation leading cause of grouse mortality, USDA study suggests
Submitted by Ted Williams on Thu, 12/15/2011 - 10:19.
But it's the man-made disturbaces, esp. the high perches, that enable this. http://billingsgazette.com/news/state-and-regional/wyoming/predation-leading-cause-of-grouse-mortality-usda-study-suggests/article_495e46f0-78cf-5edf-ab3e-c314789ee5a1.html


