Rough-legged Hawk

REALLY bad quality image, but every once in a while I will TRY and get an in-flight shot. It never works with my little camera, but I'm not sure if this is the first photo I've got of a Rough-legged Hawk in the wild, so I did want to add it to my Birds of Alberta Set. I thought that if I can get my brain to remember this image that shows the dark "elbows" then maybe there is a chance that I'll be able to ID one next time. Seen "wind-hovering" on the way back to Calgary from the Mount Lorette area (Kananaskis).