French: Viréo de Philadelphie German: Philadelphiavireo Spanish: Vireo de Filadelfia
Vireosylvia [sic] philadelphica
Bingham’s woods, near Philadelphia, Pennsylvania, USA
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.
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
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