Wildlife Clinic

Species

Philadelphia vireo

Vireo philadelphicus

A small, yellowish vireo that passes through Georgia in autumn on its way from Canada to Central America.

A Philadelphia vireo perched among leaves, olive-grey above with a pale yellow throat and breast, a dark line through the eye and a white stripe above it.

Photo Owen Strickland (opens in a new tab) / iNaturalist, CC BY 4.0 (opens in a new tab)

At a glance

Size
About 12 to 14 cm long
Weight
About 10 to 16 g
Habitat
Woodland edges and treetops on migration
Diet
Insects and fruit
In Georgia
An uncommon autumn migrant, September and October
Voice
Similar to the red-eyed vireo's song, higher and slower
Rabies vector
No

Identification

Key marks
Olive-grey above; yellow throat and breast; dark eye-line; no wing bars
Told apart from
Warbling vireo, which has a whiter throat and paler face
Told apart from
Tennessee warbler, which has a thin, pointed bill
Where to look
Treetops at woodland edges in autumn

Behaviour

Philadelphia vireos forage in the tree canopy, often with migrating warblers.

Why they matter

Named from a specimen collected near Philadelphia, this vireo breeds in Canada's young forests and winters in Central America. It is one of the less-known migrants that pass through Georgia.

Reproduction and lifecycle

Nest — A hanging cup in a tree fork, in Canada
Eggs — Usually four
Incubation — About 11 to 14 days
Chicks — Fed by both parents
Lifespan — Several years

Living around people

  • Migrating vireos strike windows; window decals help.

Misconceptions

  • It lives in Philadelphia. The name comes from where the first specimen was collected on migration.

Related species

Seasonal activity

When this species is breeding, and when there are nests on the ground. Mowing during the shaded months is how most nests are found.

Breeding and active nests by month for this species
JanFebMarAprMayJunJulAugSepOctNovDec
BreedingJan: noFeb: noMar: noApr: noMay: noJun: noJul: noAug: noSep: noOct: noNov: noDec: no
Active nestsJan: noFeb: noMar: noApr: noMay: noJun: noJul: noAug: noSep: noOct: noNov: noDec: no
NotesIn Central AmericaIn Central AmericaIn Central AmericaMigrating north through the Mississippi valleyNesting in CanadaNestingNestingMigrating southMigrants in GeorgiaMigrantsIn Central AmericaIn Central America

Where it lives

Recorded in 56 states and provinces. Each one links to the other animals there, and to the rehabilitators licensed for them.

If you found one

Answer a few questions and you will get a specific answer for what you are looking at.

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