You seem to know a lot about wild birds from what you have said in previous posts. Do you do a lot of reading, or how did you learn?
I read/have read a lot and spend a great deal of time in the outdoors. The computer has become a great tool for educating myself about what I see on my daily routines. I have seen redtails teaching their 'young of the year' how to hunt. I have seen a pair of redtails attacking a GHO in an attempt to take over its nest. I have seen a redtail strike and kill a squirrel within feet of me. I am awed by raptors even though they put me out of the pigeon raising/flying hobby.