Yellow-billed CuckooCoccyzus americanus
10 1/2-12 1/2" (27-32 cm). Jay-sized. A slender, long-tailed bird, brown above and white below, with large white spots on underside of tail and a flash of rufous in wings. Bill slightly curved, with yellow lower mandible. Black-billed Cuckoo similar, but has very little rufous in wings and smaller white spots on tail.