This is our neighborhood Redtailed Hawk, which is looking pretty darned fat these days! And I still have tons of squirrels raiding my birdfeeders every day, so he's not likely to starve.
I was on my way to run some errands but when I walked out the door he was calling rather loudly, so of course I ran back in to get the camera and long zoom. He was w-a-y up in a neighbor's tree so it was tough to get a clear shot at him. I swear he taunts me by only appearing within decent photographic range when the camera is nowhere nearby ;-)
Played with the Posterize effect, because this is a very boring shot and I might as well play! It emphasizes his very hawkish expression.
Just don't let him eat the fat squirrel in your other shot - he's too cute! He's a good looking bird - and I do like the processing to bring him out, especially his eye.
What a tough lighting situation to get exposure in. You did very good. Hawks are very skittish so to get close enough to get a nice shot like this is amazing.