Kentucky Warbler vs Tropical Parula

The Kentucky Warbler and Tropical Parula can be distinguished by their head markings: the Kentucky Warbler has a bold black mask and yellow spectacles, while the Tropical Parula features a blue-gray head with a distinct white eye-ring. Observing these facial features is key to telling them apart in the field.

Check head markings first: Kentucky Warbler has a black mask and yellow spectacles; Tropical Parula has a blue-gray head with a white eye-ring. Observe underparts: Kentucky Warbler's underparts are uniformly yellow, while Tropical Parula has a yellow throat and chest with a white belly.

Kentucky Warbler has a bright yellow underbelly and olive-green upperparts, with a distinctive black mask and yellow spectacles. Tropical Parula has a blue-gray head and back, with a yellow throat and chest, and a white belly.