rock-hopper

There is a bird up the road from my house that I haven't seen around here before. I think it may be a kestrel or something like it. It sits on the power lines and hunts the pastures there.

I was wondering if someone could point me in the direction of a good web site to help with the identification. Several years ago I stumbled across an excellent one that helped me on several occasions, but can't seem to find another one like it.