A medium-sized sunbird. Males are very colorful, with a shining coppery-green iridescence on the head and back and a purple-and-red breast band with yellow sides. Females are drab yellowish-brown. Found locally in montane forest, especially clearings and forest edge. Similar to Forest Double-collared Sunbird, but there is only minor overlap in range, and males are separated by their broad yellow sides. The calls include a squeaky “tseet” that often precedes a very quick jumble of high-pitched notes.