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.

Measurements:[2] 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.

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.