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Summary

The white-bellied woodstar (Chaetocercus mulsant) is a species of hummingbird in tribe Mellisugini of subfamily Trochilinae, the "bee hummingbirds". It is found in Bolivia, Colombia, Ecuador, and Peru.

Taxonomy and systematics

The white-bellied woodstar and several other species in genus Chaetocercus were formerly placed in genus Acestrura but have been in their current position since the late 20th century. The species is monotypic.