Coppery-headed Emerald

The coppery-headed emerald is about 7.5 cm (3.0 in) long and weighs about 3.0 to 3.3 g (0.11 to 0.12 oz). Both sexes have a moderately decurved bill whose mandible has a pinkish base. The adult male has a dull coppery bronze crown, a bronze green nape, back, and rump, and bright coppery bronze uppertail coverts. Its central pair of tail feathers are bronze, the next three pairs white with pale gray tips, and the outermost pair white with black tips. Its underparts are bright yellowish metallic green with white undertail coverts. Voice: The coppery-headed emerald's song is a "high, thin, twittering and warbling." Its call has been described as "a high, thin, liquid quip or quit or rapid high sputtering in chases."