common cuckoo cuculus canorus a bird that parasitizes the nests of other birds. cuckoo sitting on a dry tree

adult animal autumn avian background beak beautiful bird birding birds birdwatching branch canorus colorful common cuckoo cuckoos cuculidae cuculiformes cuculus czech europe european fauna feather flying green grey male nature ornithology outdoor outdoors perching photography republic singing song songbird spring springtime sunset tree wild wildlife wing wings