Yellow Billed Cuckoo, Coccyzus americanus. Uncommon and solitary, found more often in wetter habitats. They spend the breeding season east of the Rockies within the U.S. and winter in South America. The Cuckoo’s are nest parasites, laying their eggs in the nests of other birds. Their young are more likely to hatch earlier than their hosts’ and have a special groove on their rump meant for pushing other eggs out of the nest. Their diet consists mainly of insects, with some small lizards and berries. Despite the name, the call is not like a cuckoo-clock but more like a rapid series of knocking.