Angola Greenbul

This dark, medium-sized bird would be fairly unremarkable were it not for the exceptionally long crest sticking vertically out of its head. Sumatran and Bornean birds are brown, while birds on Java and the Malay Peninsula are black. Blocky white crescent behind the eye flashes as the bird moves through dense foliage in lowland and foothill broadleaf forests. Raucous; most commonly gives noisy rattles, also whistles and chips.

A big, powerful goshawk. Adults are gray on the back with fine gray barring below; females much larger. Immatures have a brown back and thick streaks below. Endemic to Madagascar, where it is a scarce resident of all types of primary forest. Rarely sits in the open, and only occasionally soars. Territorial call is a loud repeated “khew” which is often given in flight. Males can be very hard to separate from similarly-sized female Madagascar Sparrowhawk. On Henst’s, look for fine bars on the undertail, a completely barred throat, and a central toe of normal length. Immatures may only be separable based on toe length. Also very similar to the rare Madagascar Serpent-Eagle. Subtle differences include slightly smaller size, evenly-spaced barring on the chest, thicker black bands on the tail, and an unbarred back. 

Very local, poorly known black-and-yellow oriole of Chiapas and northern Central America. Favors brushy oak woodlands and semi-deciduous scrubby areas, especially with oaks. Associates with other orioles at flowering and fruiting trees, but often remains inside cover and thus easily overlooked. Male is the only yellow-and-black oriole in its range with a white wingbar. Female and immature resemble Black-cowled Oriole (usually not in the same areas), but wings grayish (not contrastingly blackish) with narrow whitish wingbar.