Streak-crowned Antvireo

Nest parasite that lays its eggs in the nests of Red-billed and Brown firefinches. Breeding males are glossy black, while females and non-breeding males are streaky and brown on the back and pale below, with a bold facial pattern. The color of the bill is red in southeast Africa and whitish in western, northern, and central Africa. Found in savanna, scrub, farmland, and towns. Mimics the vocalizations of its host firefinches: low rattling series and high-pitched whistled notes. In southeast Africa, can be separated from other indigobirds by its red bill. Very similar to other indigobirds elsewhere on the continent. Breeding males can be separated by their all-black wings that lack a pale brownish panel. The mimicked vocalizations of its host species can also help confirm identification. In non-breeding plumage, similar to non-breeding Pin-tailed Whydah but separated by red legs.

Bright green bird with long, pointed tail. Bill is dull pink. Endemic to the Socorro Island off the coast of Mexico. Seen in small flocks in wooded areas. Feeds on fruit and seeds. Listen for high-pitched screeching calls.

A chunky little bird found in a wide variety of open landscapes, often sitting on exposed perches. Breeding male has a black head, a broad white half-collar, mostly rusty-red underparts, and a white undertail and rump. Non-breeding male is patchier, with a paler head and chest. Female is predominantly streaky brown above and pale below, with a small white patch on the wing but no strongly contrasting pattern on the face. Siberian Stonechat is extremely similar, and in areas of overlap, or in cases of vagrancy, most individuals are inseparable based on current knowledge. Amur Stonechat typically shows slightly less white on the rump.