I know it is illegal to own a hawk feather but this one was basically handed to me by its previous owner. A hawk swooped down to feed on a bird that was feeding on seed at our backyard bird feeder and I was sitting 20 feet away. After a brief skirmish, the hawk flew away with its capture and left behind this feather. (payment?) At least the smaller bird put up a good fight. I brought the feather inside to search on-line and see if I could identify it. I went here and found out it is a Coopers Hawk wing feather. I copied it with colored pencils.
Here is a photograph I took a couple of years ago when a hawk decided the bird feeder made a nice perch (forgive the quality, it was taken from inside through the window blinds with my point and shoot camera). This could be a Coopers Hawk or a Sharp-shinned Hawk. Can you tell the difference?