Western Mountain Greenbul Arizelocichla tephrolaema

A large, vocal greenbul of montane forest and forest edge, found only in the highlands of Bioko Island (Equatorial Guinea), Cameroon, and eastern Nigeria. Has an olive-green body, a more yellow-green belly, an ashy-gray head, dark reddish eyes surrounded by white partial eye-arcs, and a solid black bill. Calls include repetitive chatters, sometimes ending with “kekeKOWLP!”, and repeated “chup-chup-chupup” type notes.