Diederik cuckoo either "cuprea" (coppery) or "capensis" (of Cape of Good Hope). The English name is an onomatopoeic rendition of its call. Diederik cuckoo The Diederik cuckoo ("Chrysococcyx caprius"), formerly dideric cuckoo or didric cuckoo, and sometimes called Diederik's cuckoo, is a member of the cuckoo order of birds, the Cuculiformes, which also includes the roadrunners and the anis. The diederik cuckoo is a smallish cuckoo at 18 to 20 cm. Adult males are glossy green above with copper-sheened areas on the back and whitish underparts. They have a broken white eye-stripe and a short, green malar stripe. All remiges have three
Cuckoo-finch moved to a genus of its own, "Anomalospiza". The name of the genus means "anomalous finch" with "spiza" being a Greek word for finch. The specific name "imberbis" comes from Latin and means "beardless". Its closest relatives are thought to be the indigobirds and whydahs of the genus "Vidua". These birds are now usually considered to form a family, Viduidae. Previously they were treated as a subfamily, Viduinae, within either the estrildid finch family, Estrildidae, or the weaver family, Ploceidae. The cuckoo-finch is a small finch-like bird, about 11–13 cm long. It has a short tail, large legs and feet,