Female Grey Wolf Feeding on Carcass,Yellowstone. Update: This wolf was killed - see description.

This video shows a female alpha female Grey Wolf feeding coming down from the mountainside in lamar valley, searching for, and finding a Bison Carcass. The event occured over approximately 3 hours from around 7-10AM on 8/24/2012 in Lamar Valley at Yellowstone National Park.
Update 12/19/12. Unfortunately this wolf was shot and killed. See link below for more information:
abcnews.go.com/US/yellowstones...