Greater Double-collared Sunbird

The greater double-collared sunbird (Cinnyris afer) (formerly placed in the genus Nectarinia), is a small bird in the sunbird family. This sunbird is 14 cm long and exhibits a clear sexual dimorphism. The adult male has a glossy, metallic green head, throat upper breast and back. It has a broad brilliant red band across the chest, separated from the green breast by a narrow metallic blue band. The rest of the underparts are pale grey. When displaying, yellow feather tufts can be seen on the shoulders. The plumage on the female is pale grey, darker in the wings. As with other sunbirds the bill is long and decurved. The bill, legs and feet are black. The eye is dark brown. The male can be distinguished from the similar lesser double-collared sunbird by the latter's smaller size, narrower red chest band and shorter bill. The call is a hard chut-chut-chut, and the song is a high pitched jumble of tweets and twitters, richer than the calls of the lesser double-collared sunbird.