Orange-crowned Euphonia

The orange-crowned euphonia is about 10 cm (3.9 in) long. The species is sexually dimorphic. Adult males have a deep orange-yellow crown. The rest of their head and their nape, throat, wings, and upperparts are glossy blue-black with a purplish tinge. The top side of their tail is blue-black and the underside dark gray. Their underparts from their breast to the undertail coverts are deep orange ochraceous. Adult females have a dark olive head and upperparts. Their underparts are olive-yellow that is slightly paler and yellower on the throat, belly, and undertail coverts. Voice: The orange-crowned euphonia's song is "a leisurely series of tsit notes, nasal tcheeur notes, and fast tididit phrases". Its calls are "a simple beem-beem" and "a high, clear whistled pee-deet".