Black-bellied Sunbird illustration
Birdsong field guide

Black-bellied Sunbird

Cinnyris nectarinioides

A small, vibrant nectar-feeder of East African drylands, characterized by the male's striking iridescent plumage and contrasting dark underparts.

What it sounds like

A rapid, high-pitched series of 'tsee-tsee' notes and a jumbled, twittering song characteristic of the sunbird family.

Reference call, compare with what you heard
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Rec. Peter Boesman · KenyaCC BY-NC-NDXeno-canto

Field notes

  • Males possess a metallic green head and throat separated from the eponymous black belly by a narrow, bright red breast-band.
  • The species exhibits pronounced sexual dimorphism, with females having dull olive-grey upperparts and yellowish, streaked underparts.
  • They use a specialized long, decurved bill and a tubular, brush-tipped tongue to reach nectar in deep-throated flowers.
  • The species is highly territorial and is often seen aggressively chasing other sunbirds away from prime flowering trees.
  • While primarily nectarivorous, they also consume small insects and spiders, especially during the breeding season to provide protein for chicks.
Habitat
Arid thorn-scrub, acacia savanna, and deciduous riverine thickets.
Range
East Africa, specifically Ethiopia, Kenya, Somalia, and Tanzania.

Similar & commonly confused birds

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