Pin-tailed whydah (male)

The Pin-tailed Whydah is a small songbird. It is a resident breeding bird in most of Africa south of the Sahara Desert. It has also been introduced to southern California.<br><br>
It is a brood parasite which lays its eggs in the nests of estrildid finches, especially waxbills. Unlike the Common Cuckoo, it does not destroy the host's eggs. Typically, 2-4 eggs are added to those already present. The eggs of both the host and the firefinch are white, although the whydah's are slightly larger. The nestling whydahs mimic the gape pattern of the fledglings of the host species. (information from Wikipedia)