Family Vireos (Vireonidae)

Least Concern

Philadelphia Vireo (Vireo philadelphicus)


French: Viréo de Philadelphie German: Philadelphiavireo Spanish: Vireo de Filadelfia

Vireosylvia [sic] philadelphica


, 1851,

Bingham’s woods, near Philadelphia, Pennsylvania, USA


Along with V. leucophrys and V. gilvus, sometimes separated in Melodivireo. Hybridization with V. olivaceus reported in SE Canada (Quebec). Monotypic.


S Canada (from Alberta and E British Columbia E to SE Quebec, New Brunswick and Nova Scotia), S in N USA to N North Dakota, N Minnesota, N Michigan, N New York and Maine. Migrates to Central America (extreme S Mexico in Chiapas and Yucatán, S to C Panama); recorded in N South America#R#R.

Descriptive notes

11·5–13 cm; 9·8–16·1 g. Crown grey-olive, diffuse supercilium pale grey-white (more obvious behind eye than in front), lores and area behind... read more


Only male sings; sings also from nest, and during spring migration, but not on wintering grounds.... read more


Early and middle stages of successional deciduous woodland with such broadleaf trees as aspen (... read more

Food and feeding

Food predominantly (c. 93%) arthropods, including in particular larval and adult moths and butterflies (Lepidoptera), beetles (Coleoptera... read more


Season mainly May/Jun–Aug; nest construction observed mostly 28th May to 29th Jun, sometimes to early Jul, in Ontario; single-brooded... read more


Wholly migratory; entire population moves to Central America after breeding. Nocturnal migrant.... read more

Status and conservation

Not globally threatened (Least Concern). Common. In Canada, there has been a steady increase in population as determined by Breeding Bird Survey; in S Ontario, a modest... read more

Recommended citation

Brewer, D. (2019). Philadelphia Vireo (Vireo philadelphicus). 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 May 2019).