Short-tailed Hawk was the most-common buteo of the trip, with dark-morphs predominating. Other raptors for the trip were, including vultures for conversations sake:

Black Vulture
Turkey Vulture
Lesser Yellow-headed Vulture
King Vulture (!)
Osprey
White-tailed Kite
Sharp-shinned Hawk
White Hawk
Gray Hawk
Common Black-Hawk
Great Black-Hawk
Solitary Eagle (!)
Roadside Hawk
Broad-winged Hawk
Short-tailed Hawk
White-tailed Hawk
Zone-tailed Hawk
Red-tailed Hawk
Black Hawk-Eagle (!)
Crested Caracara
Laughing Falcon
American Kestrel
Peregrine Falcon