• Welcome to BirdForum, the internet's largest birding community with thousands of members from all over the world. The forums are dedicated to wild birds, birding, binoculars and equipment and all that goes with it.

    Please register for an account to take part in the discussions in the forum, post your pictures in the gallery and more.
ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

Black-bellied Thorntail - BirdForum Opus

Subspecies melanosternon
Photo by Luis R
San Martin, Amazonia, Peru, March 2018
Discosura langsdorffi

Popelairia langsdorffi

Identification

Male 12–13·7 cm (4¾-5½ in; including long tail); female 7·4–7·6 cm (3 in)

  • Black bill, short and straight

Male

  • Emerald-green crown and throat

Distribution

Subspecies melanosternon
Photo by Luis R
San Martin, Amazonia, Peru, March 2018

South America: found from Brazil to Venezuela, Colombia, and Peru.

Taxonomy

Discosura vs. Popelairia

Sibley & Monroe (1996) place Wire-crested Thorntail (popelairii), Black-bellied Thorntail (langsdorffi), and Coppery Thorntail (letitiae) in the genus Popelairia. However, Howard & Moore (2003) and Clements (2008) place these three taxa in Discosura, and Opus follows.

Subspecies

Two subspecies are recognized[1]:

  • D. l. melanosternon:
  • D. l. langsdorffi:
  • Eastern Brazil (Bahia, Espírito Santo and Rio de Janeiro)

Habitat

Humid lowland forests and forest edges generally from 100-300 m.

Behaviour

Diet

Their diet consists of arthropods and nectar.

Breeding

They construct a cup-shaped nest from soft down.

References

  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2017. The eBird/Clements checklist of birds of the world: v2017, with updates to August 2017. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
  2. Handbook of the Birds of the World Alive (retrieved October 2015)

Recommended Citation

External Links

GSearch checked for 2020 platform.

Back
Top