Family Starlings (Sturnidae)

Critically Endangered

Grey-rumped Myna (Acridotheres tertius)


French: Martin à croupion gris German: Graubürzelmaina Spanish: Miná culigrís

Gracupica tertia

E. J. O. Hartert

, 1896,



Hitherto treated as conspecific with A. melanopterus and A. tricolor, but differs from both in its grey vs white rump (3); grey vs white lower flanks (2); grey vs white scapulars (or lower scapulars) (2); slightly larger size (mean wing of 5 males 130.2 mm vs 125.3 in 21 A. melanopterus and 126.6 in 12 A. tricolor; allow 1); also a darker grey back than A. tricolor (ns[1]). Monotypic.


Bali, formerly widespread but currently regular only in NW (Bali Barat National Park) and extreme S (Uluwatu). Formerly also Nusa Penida and (perhaps vagrant or escape) Lombok.

Descriptive notes

23 cm. Small myna with striking black-and-white plumage; feathers of forehead, crown and nape hackled, and nape feathers elongated to form erectile crest. Adult has head to... read more


Loud, harsh whistles. Vocalizations not known to differ significantly from those of A.... read more


Inhabits mostly primary and secondary monsoon forest, forest edge and open woodland, chiefly in... read more

Food and feeding

Consumes fruit, nectar and insects. Diet unlikely to differ from that of A. melanopterus. Forages in trees and on ground. In pairs... read more


Recorded in Feb. Formerly, when species far more widespread, nested in Jun in E of island.


In earlier years, when this species was more numerous, some flocks were thought to make significant... read more

Status and conservation

CRITICALLY ENDANGERED. Extremely rare. Although this starling was previously fairly common, its numbers have been severely depleted through exploitation for the cagebird... read more

Recommended citation

del Hoyo, J., Collar, N. & Christie, D.A. (2020). Grey-rumped Myna (Acridotheres tertius). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from on 25 February 2020).