Sure, hawk, why not. I'm no ornithologist. I was actually hoping the apparent act of scavenging might help me narrow it down. For example, why couldn't it have been a falcon? Do they not scavenge? Or are there no falcons in the Richmond metro area?
I think there are a few falcons that pass along the east coast during the winter months, but hawks are common and reside year round in the mid-atlantic and south. 99% you're noticing hawks, I'd guess.