Trichophorus chloronotus Cassin, 1860, Gabon. Forms superspecies with C. barbatus.
OTHER COMMON NAMES
French: Bulbul crinon oriental; German:Haarbьlbьl; Spanish: Bulbul de Lomo Verde.
7.5–8.3 in (19–21 cm); 1.3–1.5 oz (38–45 g). Large bulbul; breast and head gray, few black bristles on hindneck and mantle. Mantle, rump, and wings yellow-green olive. Tail bright rust-maroon. Chin and throat white, appears puffy and beardlike, creamy belly. Sexes alike. Juvenile resembles adult.
Endemic central Africa; Cameroon, Gabon, southern Congo, western Zaire, Angola, Central African Republic, western Uganda.
Lowland rainforest, lower montane forest to 5,900 ft (1,800 m).
Often occurs in groups; three to five birds, seem to unite by song of leader. Group territory defended by chorus and displays in which “beard” is puffed out. Mournful song of two quavering notes.
FEEDING ECOLOGY AND DIET
Mainly eats insects and their eggs, some fruit.
Territorial, possibly a cooperative breeder. Solid cuplike nest decorated with tropical epiphytic fern Microgramma owariensis, which stays green through fledging. Usually two eggs, incubation 14 days by female only.
Not threatened. Fairly common in range.
SIGNIFICANCE TO HUMANS
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