Buff-breasted sabrewing

The **buff-breasted sabrewing** (***Campylopterus duidae***), or sometimes **Duida sabrewing**, is a species of hummingbird in the "emeralds", tribe Trochilini of subfamily Trochilinae. It is found in Brazil and Venezuela.

## Taxonomy and systematics

Some authors have placed the buff-breasted sabrewing by itself in genus *Loxopterus*. It has also been treated as conspecific with the rufous-breasted sabrewing (*C. hyperythrus*), as forming a superspecies with it, or as the two being sister species. Of the major worldwide taxonomic systems, none have adopted the first three treatments and only the Clements taxonomy has adopted the last.

The buff-breasted sabrewing has two subspecies, the nominate *C. d. duidae* and *C. d. guaiquinimae*.

## Description

The buff-breasted sabrewing is about Template:Convert long and weighs Template:Convert. Males and females have essentially the same plumage. Both have a straight black bill. Their upperparts are shining bronze-green that is somewhat greener on the head. Their underparts are drab grayish with a tawny tint on the sides. Their central tail feathers are bronze and the outer ones have dull bronze bases and orangy red ends. Subspecies *C. d. guaiquinimae* has a slightly different green to the upperparts compared to the nominate, and a darker tail.

## Distribution and habitat

The nominate subspecies of buff-breasted sabrewing is found on the tepuis (isolated table mountains) of southern Venezuela and adjacent northern Brazil. Subspecies *C. d. guaiquinimae* is found only on Cerro Guaiquinima in southern Venezuela. The species inhabits the foothills and lower elevation evergreen montane forest and the higher elevation scrublands on the tepuis. In elevation it ranges between Template:Convert.

## Behavior

### Movement

The buff-breasted sabrewing is a year-round resident in its habitat.

### Feeding

The buff-breasted sabrewing forages from the understory to the mid-strata for nectar and small arthropods.

### Breeding

Nests of buff-breasted sabrewings have been noted between about Template:Convert of the ground but no other information is known about its breeding phenology.

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### Vocalization

The buff-breasted sabrewing's song has not been described in words. Its calls include "somewhat buzzy chipping notes 'chzzi' [and] a longer chattering series 'chi-zizi' or 'chizizizizizizi'."

## Status

The IUCN has assessed the buff-breasted sabrewing as being of Least Concern, though it has a very limited range and its population size is unknown and believed to be decreasing. It is, however, considered common in that small range.

## References

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1. ↑ 1.0 1.1 1.2 Hummingbirds (August 2022).
2. ↑ 2.0 2.1 HBW and BirdLife International (2021) Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 6. Available at: http://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife\_Checklist\_v6\_Dec21.zip retrieved August 7, 2022
3. ↑ Remsen, J. V., Jr., J. I. Areta, E. Bonaccorso, S. Claramunt, A. Jaramillo, D. F. Lane, J. F. Pacheco, M. B. Robbins, F. G. Stiles, and K. J. Zimmer. Version 24 July 2022. A classification of the bird species of South America. American Ornithological Society. https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm retrieved July 24, 2022
4. ↑ 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 Sánchez Osés, C. and P. F. D. Boesman (2020). Buff-breasted Sabrewing (*Campylopterus duidae*), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.bubsab1.01 retrieved August 24, 2022
5. ↑ Clements, J. F., T. S. Schulenberg, M. J. Iliff, S. M. Billerman, T. A. Fredericks, J. A. Gerbracht, D. Lepage, B. L. Sullivan, and C. L. Wood. 2021. The eBird/Clements checklist of Birds of the World: v2021. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/ Retrieved August 25, 2021
6. ↑ 6.0 6.1 Template:Cite book
7. ↑ Cite error: Invalid `<ref>` tag; no text was provided for refs named `IUCN`