In Hong Kong this species is mainly a winter visitor and passage migrant in wooded habitats. Males are slate-grey; females are paler and can show weak barring below.
In the Hong Kong account, adult males are slate-grey and paler below, with a green gloss on the dark wings and tail. The long tail has white tips underneath. Females are paler and may have weak dark bars on the underparts.
In Hong Kong it keeps to dense parts of the canopy and can join mixed-species foraging flocks, often with minivets. Diet records are limited; one photograph showed it feeding on a mantis nymph.
An extinction-risk assessment has not been added yet.