Wildlife Clinic

Species

Wilson's warbler

Cardellina pusilla

A small, yellow warbler with a black cap, a scarce migrant through Georgia.

A male Wilson's warbler standing on paving with its tail cocked, bright yellow below, olive above, with a neat round black cap.

Photo Frank Dietze (opens in a new tab) / iNaturalist, CC BY 4.0 (opens in a new tab)

At a glance

Size
About 10 to 12 cm long
Weight
About 6 to 10 g
Habitat
Shrubby thickets on migration
Diet
Insects
In Georgia
An uncommon migrant; a few winter
Voice
A rapid, chattering song
Rabies vector
No

Identification

Key marks
Bright yellow; olive back; black cap in males
Told apart from
Hooded warbler, whose male has a full black hood
Where to look
Thickets during migration

Behaviour

Wilson's warblers forage actively in shrubs, flicking their tails.

Why they matter

Wilson's warblers are among the most abundant warblers in the West; birds reaching Georgia are at the eastern edge of their range.

Reproduction and lifecycle

Nest — A cup on or near the ground
Eggs — Usually four to six
Incubation — About 10 to 13 days
Chicks — Fed by both parents
Lifespan — Several years

Living around people

  • Thickets are important on migration.

Misconceptions

  • All yellow warblers are yellow warblers. Several species are mostly yellow.

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
NotesA few winteringA few winteringFew presentMigrating northMigrantsNesting in the north and westNestingMigratingMigrantsMigrantsA few winteringA few wintering

Where it lives

Recorded in 88 states and provinces. Each one links to the other animals there, and to the rehabilitators licensed for them.

If you found one

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