Sombre greenbul (bulbul)
This species is generally a drab olive-green, and lacks diagnostic field characteristics except the white eye. The northeastern race hypoxanthus
is very yellow below and could be confused with Yellow-bellied Greenbul, except for its white (not dark red) eye. This is an inconsicuous, but vocal canopy-dwelling species.
Juvenile is duller than adult.
Evergreen forests, coastal bush and thick thornveld.
Normal call is a piercing 'weeewee', followed by a liquid chortle.