White-necked Petrel

A slim, long-tailed all-black flycatcher with a dark eye. Found in savanna, woodland, and cultivated areas. Single birds or pairs sit out on conspicuous perches, sometimes quite low. Very similar to Southern Black-Flycatcher, but there is virtually no overlap in range, and Northern lacks gloss in the black plumage. Distinguished from drongos by the slimmer bill and dark brown eye. Could be confused with certain black cuckooshrikes or boubous, but has a more vertical posture, and sits motionless for much longer periods. Not very vocal, but does have a pretty song of various trills, wheezes, and whistles given with long pauses between phrases. 

Male is iridescent green above and dark below, with a purple band across the breast. Female is nondescript, with a pale eyebrow and blurry streaking across the pale yellowish underparts. Restricted to the island of Pemba, where it is common in all habitats. Similar to Tsavo and Violet-breasted Sunbirds, but separated by range. Song is a typical sunbird high-pitched jumble; also gives “tsik” calls. 

Brown bulbul with a sparse, wispy crest. Darker above and paler below. Grayish face, thick black bill, and plain coloration make this a readily identifiable species, albeit an unremarkable one. Gives a sweet, quiet warble: “chee-wee’li’li’wee”. Primarily a lowland species, but ascends into hill forest in some areas. Found in mature forest, forest edges, and tall secondary growth. Often joins other species in mixed flocks, usually at mid-level.