Identification
The smallest member of a group of frustratingly similar double-collared sunbirds that co-occur in African forests. Often encountered near forest edges and in forest clearings, and sometimes even in villages and gardens. Males have an olive belly, a bright red chest band with a blue and purple upper border, yellow underwing tufts, and an iridescent green throat, head, and upperparts. Females are generally olive all over with a slight eye-line and darker olive streaking on the undersides. Appears short-billed, and from a distance almost straight-billed. Extremely similar to Olive-bellied Sunbird and Northern Double-collared Sunbird, with which this species co-occurs. Look for Tiny Sunbird’s short, nearly straight bill and the small red breast band on the males. Gives sharp “tsew!” calls and, in its song, multiple notes at different pitches in rapid succession.