Bird Invades Local Radio Station

This bird has been screeching outside the radio station for almost two weeks now. 

I'll be the first to admit, I know nothing about birds. I don't know if this bird is a falcon, or a hawk, or something else.

Either way, for nearly two weeks, it has made one of our radio towers it's new home. It just sits up there, changing positions on the tower quite often, and screeching away.

Usually the bird sits much higher on the tower, which made it hard to get a good look at it. However, it finally came down low enough that we could get a quick video.

Smitty managed to get within a few feet of the bird before it crapped itself and flew away.

If you know which kind of bird this is, please let us know.