Sulawesi Honey-buzzard illustration
Birdsong field guide

Sulawesi Honey-buzzard

Pernis celebensis

A medium-sized, sedentary raptor endemic to the Sulawesi subregion, specialized in raiding the nests of social Hymenoptera. It is noted for its striking plumage mimicry of the sympatric Sulawesi Hawk-eagle.

What it sounds like

A high-pitched, thin rising whistle described as 'wheee-uh' or a series of rapid, staccato notes.

Reference call, compare with what you heard
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Rec. David Farrow · IndonesiaCC BY-NC-SAXeno-canto

Field notes

  • It is a specialized feeder on the larvae, pupae, and honeycombs of social bees and wasps.
  • Features unique scale-like feathers on the lores and around the eyes to protect against insect stings.
  • Exhibits Batesian mimicry, evolving plumage that nearly perfectly matches the more powerful Sulawesi Hawk-eagle.
  • Unlike many other honey-buzzard species, the Sulawesi Honey-buzzard is entirely non-migratory.
  • The species possesses relatively straight claws, an adaptation for walking on the ground or inside tree cavities while foraging.
Habitat
Primary and secondary lowland and montane rainforests, forest edges, and occasionally nearby plantations.
Range
Endemic to Sulawesi and adjacent islands including Muna, Buton, Banggai, and the Sula archipelago.

Similar & commonly confused birds

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