Tawny-crested Tanager

Chunky dark brown raptor with a white belly marked by thin bars. Immatures are brown when perched, and show rufous patches in the underwing in flight. Found in savanna habitats. Soars frequently and sometimes hovers. Very similar to Short-toed Snake-Eagle, but has darker upperparts and narrower dark bars on the belly; the front of the underwings looks white and unbarred in flight. Immature similar to immature Black-breasted and Short-toed Snake-Eagles, but identified by the rufous patches on the underwings.

Enigmatic and distinctive, this compact all-dark martin has striking red eyes and a bright orange-red bill. Juvenile is duller. In lethargic flight it appears bulky-headed, short-tailed, and triangular-winged. Small to large groups forage high over forested rivers, swamps, and coastal scrub. Birds migrate between two breeding areas, one in coastal central Africa from Gabon to northern Angola (August to December), and another farther inland, centered on the Congo River in west-central Democratic Republic of Congo (January to May), but their habits remain poorly understood. Calls include a scratchy chattering “skeer-skeer”; large flocks can become cacophonous. 

A small, very dark brown shorebird with a very short thin bill and a distinct white eyebrow. Upperparts spotted with buff, underside spotted or barred with brown. Legs yellow or grayish. In flight, looks very dark with very rounded wings. Prefers coastal shoreline and bare gravel of tiny atolls. Combination of odd proportions, very short thin bill, and white eyebrow should make this species unmistakable. Most common call is a nasal “kek,” but when excited gives a loud piping whistle and a series of rising and falling trills.