There are currently 147 known species of the Order Cuculiformes which includes Cuckoos. I have photographed 4 (2.7%) of these species of birds, all of the Family Cuculidae.
–Greater Roadrunner (Geococcyx californianus)
–Yellow-billed Cuckoo (Coccyzus americanus)
–Smooth-billed Ani (Crotophaga ani)
–Squirrel Cuckoo (Piaya cayana)