Yeah, I can't find a great match either. They could be a juvenile red-tail, red-tails are very variable. A cooper's would have more bars. They're also about crow-sized, but have big long-toed feet, are adapted to hunting birds. Like other accipiters they are bold and more willing to take on...
When Britons and europeans say "hawk" they mean an accipiter. A goshawk is the biggest one.
Our most common "hawk" in the Americas is a red-tailed hawk. You'd call it a buzzard. A giant death buzzard as she is significantly bigger than a Common Buzzard, and her feet are comparatively huge --...