Notice for readers: On March 31, Neotropical Birds will be integrated into the new Birds of the World, a powerful research database offering species accounts for every species on earth. Learn more at While Birds of the World is a subscription service, we remain committed to offering this content to Neotropical Birds contributors and to those unable to pay for it through our scholarship program. Stay tuned.

Black-thighed Puffleg Eriocnemis derbyi

  • © Allan Drewitt

Currently, listed as “near threatened,” the population of Black-thighed Pufflegs is declining due to loss of habitat. They depend on the edges of humid forests, bushy semi-open pastures, and ravines; they spend little time, if any, in the forest interior. Black-thighed Pufflegs are active, territorial hummingbirds that primarily feed on nectar from low flowers. Both males and females are green above with black tails. The leg puffs of males are black while those on females are a blend of black and white. Females are white below but have large and extensive green spots.

Help complete this species

There are many ways to contribute—we need species information, photographs, audio, video, translations, maps, distribution data, and bird sightings. There's a role for everyone!

Learn more
Audio needed
  • Year-round
  • Migration
  • Breeding
  • Non-Breeding

Recommended Citation

Black-thighed Puffleg (Eriocnemis derbyi), In Neotropical Birds Online (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. retrieved from Neotropical Birds Online: