辨識
A medium-sized greenbul often found in flocks in forest and forest edge with other bearded-greenbuls. Like all bearded-greenbuls, will sometimes puff out throat feathers. Often forages actively along trunks and large branches. Shows a grayish head, a bright white throat, yellow-green underparts, and olive-green upperparts with a reddish tail. Nearly identical to Red-tailed Greenbul, and can occur with it in the same mixed-species flocks in Central Africa. Not all individuals can be safely identified. Listen for White-bearded Greenbul’s distinctive calls as it forages on large branches and trunks, and look for its duller red tail and, at close range, its thinner, smaller bill and more slender build. A vocal species, frequently giving “hut-TYER-CHUR!” or similar short, gruff calls.