The Coppery-headed Emerald is small bird which is endemic to Costa Rica, averaging 7.6 cm long. The male has a distinctive coppery crown and backside with a green belly and white vent. The female has a white belly and a narrow black band on the white outer parts of the tail. Like all hummingbirds, the coppery-headed emerald feeds on nectar and small invertebrates. Because its bill is short, it forages on small flowers. They live in wet montane forests and forest edges. Calls of Coppery-headed Emeralds are high, thin, and rapid high sputtering in chases.