Rufous-sided Broadbill illustration
Birdsong field guide

Rufous-sided Broadbill

Smithornis rufolateralis

A secretive, stocky suboscine of African rainforest understories, best known for the males' mechanical wing-drumming displays. It features a broad bill and distinctive rufous flank patches that are often hidden until the bird is active or displaying.

What it sounds like

A sharp, mechanical, buzzing 'kwee-ik' or 'vrr-ip' sound produced aerodynamically by the wings during a short circular flight.

Reference call, compare with what you heard
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Rec. Paul Lenrumé · GabonCC BY-NC-SAXeno-canto

Field notes

  • The species produces a loud, mechanical sound during display by vibrating specialized primary feathers while flying in a small circle.
  • Unlike most passerines, it belongs to the family Calyptomenidae, making it more closely related to Asian green broadbills than typical songbirds.
  • The nest is a pendulous, pear-shaped structure composed of moss and lichen, usually suspended over water or a forest clearing.
  • The rufous patches on the flanks are often concealed by the wing coverts, appearing only when the bird fluffs its feathers or displays.
  • It is primarily an insectivore that hunts via 'sally-gleaning,' snatching prey from the undersides of leaves in mid-air.
Habitat
Lowland primary and secondary evergreen rainforest, particularly near swampy areas or dense undergrowth.
Range
West and Central Africa, ranging from Sierra Leone east to western Uganda and south to northern Angola.

Similar & commonly confused birds

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