Two drongo clutches parasitised by different African cuckoo females. In each clutch of eggs the cuckoo egg is on the right. (IMAGE)

University of Cambridge

Two drongo clutches parasitised by different African cuckoo females. In each clutch of eggs the cuckoo egg is on the right.

Caption

Two drongo clutches parasitised by different African cuckoo females. In each clutch of eggs the cuckoo egg is on the right.

Credit

Jess Lund

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