Brood parasitism

I did not have the right lens to catch this in detail, but here is a Cuckoo chick (en.wikipedia.org/wiki/Cuckoo_bird) being fed by a Cape Wagtail - Motacilla capensis. The Cuckoo lays it's eggs in another bird's nest and then those birds have to raise the young. - Brood parasitism. Taken in Pretoria, South Africa

Done