Wildlife Clinic

Species

Kentucky warbler

Geothlypis formosa

A bright yellow warbler with black 'sideburns' that sings a rolling 'churree' from Georgia's damp woods.

A Kentucky warbler perched on a twig, olive-green above and bright yellow below, with yellow spectacles curving around its eye above black sideburns.

Photo Brandon Johnson (opens in a new tab) / iNaturalist, CC BY 4.0 (opens in a new tab)

At a glance

Size
About 13 cm long
Weight
About 12 to 16 g
Habitat
Moist deciduous forests with dense understorey
Diet
Insects from leaf litter and low leaves
In Georgia
A common summer resident
Voice
A rolling "churree-churree-churree"
Rabies vector
No

Identification

Key marks
Olive back; bright yellow underparts; yellow spectacles; black crown and "sideburns"
Told apart from
Common yellowthroat, which has a black mask across the face
Where to look
Damp woods with dense undergrowth

Behaviour

Kentucky warblers forage on or near the ground, flipping leaves for insects.

Why they matter

Kentucky warblers depend on large, moist forests with rich understorey, and they are a sign of healthy bottomland and ravine woods.

Reproduction and lifecycle

Nest — A cup on or near the ground
Eggs — Usually four or five
Incubation — About 12 to 13 days
Chicks — Fed by both parents
Lifespan — Several years

Living around people

  • Deer overbrowsing of forest understorey reduces their habitat.

Misconceptions

  • It lives only in Kentucky. It nests across much of the Southeast, including Georgia.

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 and South AmericaIn the tropicsIn the tropicsArrivingNestingNestingYoung fledgingPresentLeavingLast birdsIn the tropicsIn the tropics

Where it lives

Recorded in 37 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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