Caption
Juvenile European cuckoo {Cuculus canorus} fed by Reed warbler {Acrocephalus scirpaceus}. Bucks, UK. Cuckoos lay their eggs in the nests of reed warblers and when they hatch, the warbler mother will adopt the enormous chick! Cuckoos can therfore have lots of chicks while avoiding parental duties.
Availability
Only inBelgium, Canada, France, Luxembourg, Switzerland