Family Tyrant-flycatchers (Tyrannidae)

Least Concern

Acadian Flycatcher (Empidonax virescens)


French: Moucherolle vert German: Buchenschnäppertyrann Spanish: Mosquero verdoso

Platyrhynchos virescens


, 1818,

no locality = near Philadelphia, Pennsylvania, USA


Phylogenetic study#R suggests that this species belongs in a clade on its own. Monotypic.


Mainly E North America from SE South Dakota and Great Lakes region E to S Ontario and C New England, S to C Texas, Gulf Coast states and C Florida. Winters from Caribbean slope of Nicaragua S & E along both slopes to Colombia, NW Venezuela and W Ecuador.

Descriptive notes

13–14·5 cm; 12·2–14 g. Large, long-billed and long-winged Empido­nax. Adult has olive-green crown, pale lores, white or yellowish-white... read more


Common call, by both sexes throughout year, a sharp “pwit”, “pweet” or... read more


Breeds in mature deciduous and coniferous forests, often near water in river bottoms, ravines or... read more

Food and feeding

Arthropods; fruit also recorded. Diet when breeding includes beetles (Coleoptera), hymenopterans, homopteran bugs (aphids, hoppers, cicadas... read more


Mid-May to early Aug; some pairs double-brooded, especially in extreme S of range. Nest built by female, average inside diameter 4·... read more


Long-distance migrant, wintering in Central America and N South America. Leaves breeding grounds... read more

Status and conservation

Not globally threatened. Uncommon to fairly common. Overall population estimated at 4,700,000 individuals. Population relatively stable; US breeding-bird survey data show... read more

Recommended citation

Farnsworth, A., Lebbin, D. & Christie, D.A. (2019). Acadian Flycatcher (Empidonax virescens). 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 12 November 2019).