The thick-billed euphonia (Euphonia laniirostris ) is a species of bird in the family Fringillidae, formerly placed in the Thraupidae.
Small, compact, short-tailed finch-like bird. Usually yellow below and blue-black above with a thick bill. To identify male euphonias, focus on the crown and throat: in Thick-billed, the crown is entirely yellow and the throat is also yellow. Females are extremely difficult to separate from other euphonias, especially Yellow-crowned, but are often seen in pairs or small groups with the more distinctive males. They frequent open woodland habitats, edges and gardens. They may form foraging flocks with other species such as warblers and tanagers.
