Common Cuckoo

This is the famous bird of Europe whose voice is imitated by cuckoo clocks (and whose call, coo-coo, gave the name to the entire cuckoo family). It is well known as a brood parasite: females lay their eggs in the nests of smaller birds, and their hapless 'hosts' raise only young cuckoos. A common migratory bird across most of Europe and Asia, it regularly strays to the western Alaskan islands in late spring and early summer.