Kentucky warbler

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Kentucky warbler
Kentucky Warbler1 Tex.jpg
Male Kentucky warbler
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Parulidae
Genus: Geothlypis
G. formosa
Binomial name
Geothlypis formosa
(Wilson, 1811)
Oporornis formosus map.svg
Range of G. formosa
  Breeding range
  Winter range

Oporornis formosus

The Kentucky warbler (Geothlypis formosa) is a small species of New World warbler. It is a sluggish and heavy warbler with a short tail, preferring to spend most of its time on or near the ground, except when singing.


South Padre Island - Texas

Adult Kentucky warblers are mostly an olive-green in color on their back and nape, and a brilliant yellow below from their throat to their belly. They have a small tinge of black on their crown, and a large black mask with a yellow pattern that runs from the beak and encircles the eyes, resembling a pair of spectacles. Female Kentucky warblers have slightly less black on the sides of their head, and immature birds may have almost no black at all.


  • Length: 5.1 in (13 cm)
  • Weight: 0.5-0.5 oz (13-14 g)
  • Wingspan: 7.9-8.7 in (20-22 cm)


The Kentucky warbler is a scarce bird with a large range, frequenting moist deciduous forests. It is migratory, spending summer in the central and eastern United States, often ranging as far north as Wisconsin to Pennsylvania. Come fall and winter the Kentucky warbler will migrate back to the Yucatán Peninsula and the many islands of the Caribbean, flying non-stop across the Gulf of Mexico. In 2007, the Kentucky warbler was seen as far west as Farmington, New Mexico.


Kentucky warblers nest on the ground hidden at the base of a shrub or in a patch of weeds in an area of ample vegetation. The female will lay between 3 and 6 eggs, which are white or cream-colored and speckled with brown. Incubation is done by the female only, and lasts for about 12 days. The young Kentucky warblers usually leave the nest about 10 days after hatching.


  1. ^ BirdLife International (2016). "Geothlypis formosa". IUCN Red List of Threatened Species. 2016: e.T22721812A94732492. doi:10.2305/IUCN.UK.2016-3.RLTS.T22721812A94732492.en. Retrieved 12 November 2021.
  2. ^ "Kentucky Warbler Identification, All About Birds, Cornell Lab of Ornithology". Retrieved 2020-09-30.

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