Semipalmated Sandpiper

A nest parasite that lays its eggs in the nests of African and Black-bellied Firefinches and Brown and Dybowski's Twinspots. Breeding males are glossy black with blue iridescence and a pale brownish panel in the wings. Females and non-breeding males are streaky and brown on the back and pale below, with a bold facial pattern. The bill is whitish and the legs very pale purplish. Found locally in lush woodland, savanna, and cultivated areas. Given current knowledge, can only be confidently identified by mimicked vocalizations. Each male parasitizes only one of the four host species and imitates its vocalizations, often mixing them into a scratchy jumble of high-pitched notes. 

Tiny, delicate-looking tern. Mainly coastal, but also occurs inland locally. Breeding plumage has black cap with white forehead chevron, black-tipped yellow bill. Readily identified by tiny size, though wintering adults can be confusingly similar in patterning to Common Tern; look out for black stripes extending from the shoulder to the wingtip. Breeds colonially on sandy and stony substrates, at times with other terns, from beaches to riverbanks and lakeshores. Often overlooked unless noisy and mobbing you at a colony. Flies with hurried deep wingbeats; splash dives in water to catch small fish.

A mostly yellow bird with a black hood and a red bill. The tail pattern varies geographically; it can be largely plain olive-and-yellow, or it can show black patches. Found in lush woodland and montane forest at middle elevations in the Abyssinian highlands. Very similar to African Black-headed Oriole, but usually separated by habitat and range. Further distinguished by the wing pattern, which is plainer, with a long gray patch, and without bold white feather edgings. Song is a series of slurred, liquid whistles, and calls include raspy notes.