Small olive-green flycatcher with a long slender tail that is often held cocked. Note the yellow eyebrow, yellow throat, and two wingbars. It is yellowish below with an olive-green back. An uncommon and threatened inhabitant of coastal woods and scrub, where it often accompanies mixed-species flocks. Very similar to Mottle-cheeked Tyrannulet, but doesn’t overlap in range and has less yellow on the belly. The song is a high-pitched whistle.