Wildlife Clinic

Species

Chestnut-sided warbler

Setophaga pensylvanica

A neat warbler with a yellow cap and chestnut sides that nests in the shrubby clearings of north Georgia's mountains.

A male chestnut-sided warbler perched on a twig, with a yellow crown, a black line through the eye, white cheeks and underparts and a chestnut stripe down each side.

Photo Blake Ross (opens in a new tab) / iNaturalist, CC BY 4.0 (opens in a new tab)

At a glance

Size
About 11 to 14 cm long
Weight
About 8 to 13 g
Habitat
Shrubby clearings and young forest
Diet
Insects
In Georgia
A summer resident in the mountains; a migrant elsewhere
Voice
"Pleased pleased pleased to MEET-cha"
Rabies vector
No

Identification

Key marks
Yellow crown; black mask; chestnut streaks along the sides; white underparts
Told apart from
Bay-breasted warbler, which has a chestnut crown and throat
Where to look
Shrubby clearings in mountain forests

Behaviour

Chestnut-sided warblers forage in shrubs and hold their tails cocked.

Why they matter

Chestnut-sided warblers were rare when eastern forests were intact and increased as clearings grew back. They depend on young, shrubby forest.

Reproduction and lifecycle

Nest — A cup in a low shrub
Eggs — Usually four
Incubation — About 11 to 12 days
Chicks — Fed by both parents
Lifespan — Several years

Living around people

  • Young forest clearings support them.

Misconceptions

  • Forest clearings are bad for all birds. Some warblers depend on them.

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 AmericaArrivingNestingNestingYoung fledgingMigrantsMigrantsLast migrantsIn Central AmericaIn Central America

Where it lives

Recorded in 53 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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