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White-bellied Woodstar - BirdForum Opus

Photo © by ejaramillo
Cuenca, Ecuador
Chaetocercus mulsant

Chaetocercus mulsanti
Acestrura mulsant


8·5 cm (3¼-3½ in)

  • Bluish-green upperparts and flanks
  • White breast
  • Lilac throat
  • White post-ocular spot continues with a line to join breast
Photo © by mmdnje
Tandayapa Lodge, Ecuador, December 2007


South America: found in Colombia, Ecuador, Peru and Bolivia


This is a monotypic species[1].

This and other species have previously been placed in genus Acestrura which is generally not currently recognized as valid.


Edges of humid forest, highland pastures, and cultivated areas, riparian vegetation. At heights around



Photo © by Stanley Jones
Guango Lodge, Papallacta, Napo Province, Ecuador, January 2016

Not a lot is known about their diet, but they have been observed feeding on the nectar of flowering agave and other small flowers.


  1. Clements, J. F., P. C. Rasmussen, T. S. Schulenberg, M. J. Iliff, T. A. Fredericks, J. A. Gerbracht, D. Lepage, A. Spencer, S. M. Billerman, B. L. Sullivan, and C. L. Wood. 2023. The eBird/Clements checklist of Birds of the World: v2023. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/
  2. Avibase
  3. Handbook of the Birds of the World Alive (retrieved August 2016)

Recommended Citation

External Links

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