Dusky Crimsonwing illustration
Birdsong field guide

Dusky Crimsonwing

Cryptospiza jacksoni

The Dusky Crimsonwing is a reclusive, high-altitude estrildid finch endemic to the Albertine Rift montane forests, known for its striking contrast of deep crimson and dark slate-grey plumage.

What it sounds like

A high-pitched, thin 'tsit' or 'tsee-tsee', often accompanied by a quiet, warbling song.

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

Field notes

  • It is one of four crimsonwing species in the genus Cryptospiza, all of which are restricted to African montane regions.
  • Unlike many finches, it is highly secretive and prefers foraging in the deep shadows of the forest understory.
  • The species exhibits sexual dimorphism, with males possessing more extensive crimson on the face and flanks than females.
  • Their diet primarily consists of small grass seeds and occasional small insects found in dense vegetation.
  • The Dusky Crimsonwing is considered a 'range-restricted' species, found only in the Albertine Rift Endemic Bird Area.
Habitat
Undergrowth of moist montane forests, bamboo thickets, and forest edges between 1,500 and 3,200 meters.
Range
Albertine Rift mountains of eastern DR Congo, southwest Uganda, Rwanda, and Burundi.

Similar & commonly confused birds

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