Green-backed Whistler

A mostly black inhabitant of swamps and marshes. The male has a telltale orange-red shoulder patch with pale yellow trim, which the female lacks. Both sexes of Tawny-shouldered Blackbird have a yellow-orange shoulder, though the shoulder color is sometimes only visible in flight. The Shiny Cowbird lacks a shoulder patch, is quite glossy, and has a shorter and stouter bill than Red-shouldered Blackbird. The call is a “chut” or “chut-chut” and song is a shrill “Shuh-reee-eee.”

A very small nondescript sunbird with a short orange-based bill that curves uniformly along its length; easily mistaken for females of other sunbirds. The only features on the olive upperparts are indistinct paler eyebrows and lines running under the eyes, and yellow edging to the wings. Although often hidden, the male has yellow or whitish (not red) tufts at the shoulders. Singles are local and inconspicuous at the edges of lowland and riverine forest, sometimes entering secondary growth; it joins mixed-flocks and is frequently attracted to epiphytes in mossy clumps. Calls a high-pitched “tseeep” and trills. Little Green and Fraser’s sunbirds are similar to Bates’s but brighter, with straighter bills and more distinct yellowish eye-rings; Ursula’s Sunbird has a long decurved bill and grayish face and underparts.

An easily overlooked forest bee-eater of West and Central Africa, often found in the forest interior and near forest edge or tree-fall gaps. Dark overall, with a bluish to blue-purple head, belly, and tail, a red throat, a dark eye-line, and a reddish back. May overlap locally with Blue-headed Bee-eater in South-West Region, Cameroon, but Blue-moustached Bee-eater has a dark forehead and a noticeable eye-line. Calls include a seldom-heard, two-parted “ji-up!”