I have only photographed red-footed boobies (Sula sula) in Belize, thus I have only seen the subspecies, Sula sula sula, which by the way, is a really fun latin name.
Red-footed boobies, Half Moon Caye, Belize, May 29, 2003
Red-footed boobies, Half Moon Caye, Belize, May 29, 2003