Sira Tanager

Rare flycatcher known only from a few sites in the Colombian Andes, mainly in the northern part of the central range. It is fairly small and mostly yellow, with a gray crown and broad, yellow wingbars. Yellow and gray smudges on ears can be very indistinct. Often confused with the much more common Yellow-olive Flycatcher, but bill is narrower, wingbars are brighter yellow, and voice is different. Typical song is a short burst that starts off as a dry rattle and then morphs into airy squeaking. Inhabits humid forest and sometimes joins mixed species flocks.

An unusual and distinctive Central African chat. Mostly gray-brown with a white throat, rump, and undertail and white wing patches that are conspicuous in flight. Found locally in grassland, usually in pairs or small groups. Hops along the ground or sits up on low perches. Structure and behavior similar to Sooty Chat, but gray-and-white plumage is completely different. The cheerful song alternates higher whistled notes and lower chirruping notes. This song is often given in a hovering display flight. 

A large bird of lowland and foothill forest and edge. Male has a black breast and white and yellow plumes which he raises above his back during his display, in which he variably hops about and flaps his wings, then holds them out still. May overlap slightly with Lesser and Emperor birds-of-paradise but male Greater is larger and lacks a yellow back. Female Greater is distinguished from other species by its all brown body. Male gives a typical, repeated nasal squawk.