First of all, I know these shots are blurred. This is not because of mis-focus, but because of thermal effects. I set up my 7D with 100-400L at 400mm on a tripod in my opened bedroom window this morning to shoot a recent newcomer to the back yard. The problem is that I'm in Eastern Massachusetts, and this morning the outside air temp was about 15F. The distortion caused by thermal mixing of the warm bedroom air with the frigid outside air could easily be seen on the camera viewfinder.
That being said, I'm curious what kind of hawk we have here. He's about 12-15 inches high from feet to head, not counting the tail, so I'm guessing that may rule out the smaller sharp-shinned hawk or a Cooper's hawk. There's a birdfeeder about 10 feet directly below my position, and I'm sure that the plentiful songbirds it attracts are on the hawk's dinner menu. I'm also hoping that the nest just to the left of the hawk is under its consideration for raising a family. It'd be very cool to be able to photograph the raising of a clutch of hawks in the back yard, even if that means there'd be fewer songbirds this summer. Nature is cruel but beautiful.
What's the consensus?