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Genus Geococcyx
Greater roadrunner - The roadrunner is about 56 centimetres long and weighs about 300 grams , and is the largest North American cuckoo. The adult has a bushy crest and long thick dark bill. It has a long dark tail, a dark head and back, and is blue on the front of the neck and on the belly. Roadrunners have four toes on each zygodactyl foot; two face forward, and two face backward.
Lesser Roadrunner - The Lesser roadrunner resembles the Greater Roadrunner in appearance and habit but is smaller and has a significantly shorter bill. Its breeding range is in southwestern Mexico, and north into the western side of the Sierra Madre Occidental range; also northern Central America, and a disjunct range in the northern Yucatán Peninsula.