A fork-tailed drongo nest that has been parasitised by an African cuckoo (cuckoo egg on the bottom right). (IMAGE)

University of Cambridge

A fork-tailed drongo nest that has been parasitised by an African cuckoo (cuckoo egg on the bottom right).

Caption

A fork-tailed drongo nest that has been parasitised by an African cuckoo (cuckoo egg on the bottom right).

Credit

Jess Lund

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