We have a local group that rehabilitates injured wildlife, and has a fed permit for raptors. I took them a redtail with a broken wing a few years back (after getting the go-ahead from DNR, of course) and they let it go at the school after he was ready. This sweet lil' gal, a yearling redtail, apparently ate some lead - tainted deer guts, and it paralyzed a leg and wing. Coworker brought her to me at school, and i took her to the rescue people. She was given chelation compounds to counteract the lead and is now gaining weight. She should make it. EDIT - Irresponsible to post this without explaining a bit more,sorry ....some Teacher!!