We had a good sighting of two birds of prey during our US trip, each conveniently sitting in a nearby tree for several minutes.
The first was at Sloss Furnaces in Birmingham Alabama. It looks like a young buzzard in UK parlance, but according to Wikipedia such birds are hawks in the US. And there are a lot of types of hawk. So this is maybe a roadside hawk or a broad winged hawk? Apparently one book says it’s a buzzard!
The second was in the botanical gardens in Memphis Tennessee, and appears to be a red tailed hawk.
It will be apparent that my knowledge and experience of these raptors is minimal. They are usually just small bird-shaped blobs high in the sky!
** See comment by kingbirdgraphica, which gives the correct identification.