Mariquita-d'asas-azuis Vermivora cyanoptera

Small, yellow warbler found in scrubby or cut-over habitats with some large trees, including field edges or powerline cuts. Yellow overall with black line through eye. Blue-gray wings with two whitish wingbars; sharply pointed bill. Adult males brighter than females and immatures. Two-note buzzy song sounds rather insect-like. Winters in Central America. Hybridizes with Golden-winged Warbler.