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White-naped Brushfinch - BirdForum Opus

Revision as of 13:34, 27 July 2023 by Deliatodd-18346 (talk | contribs) (Minor layout changes)
White-naped Brushfinch, subspecies albinucha
Photo © by Raul Padilla
San Bartolo Tutotepec, Mexico, 5 March 2016
Atlapetes albinucha

Includes Yellow-throated Brush-Finch

Identification

17–21 cm (6¾-8¼ in)
Two different groups:

White-naped BrushFinch

Upperside dark gray to black, head with white stripe on central crown down to start of nape. Underside yellow, becoming more dusky towards the rear.

Yellow-throated Brushfinch, subspecies gutturalis
Photo © by Pitter
Dapa, Valle de Cauca, Colombia, 30 May 2012

Yellow-throated BrushFinch

Yellow-throated Brushfinch, subspecies brunnescens
Photo © by PanamaHarpy
Boquete, Panama, 17 August 2011

Differ from the White-naped type in having yellow limited to the throat; the rest of the underside varies from pale gray washed brownish on flanks to white washed with olive.

Distribution

Central and South America: From Mexico to Colombia and northernmost Ecuador.

Taxonomy

Subspecies

There are 8 subspecies[1] in two groups, which differ remarkably and are sometimes treated as two species:

White-naped Brush-Finch

  • A.a. albinucha:
  • Limited to Atlantic slope in Mexico, in Puebla and from Veracruz to northern Chiapas (and possibly adjacent Guatemala). There is no overlap in range with Yellow-throated Brush-Finch.

Yellow-throated Brush-Finch

This form is found from southern Mexico to Panama and Colombia.

  • A.a. gutturalis (if considered a full species, this is the nominate subspecies of the species Atlapetes gutturalis):
  • A.a. griseipectus:
  • Pacific slope of southern Mexico (Chiapas) to western Guatemala and El Salvador
  • A.a. fuscipygius:
  • A.a. parvirostris:
  • A.a. brunnescens:
  • Subtropical western Panama (western Chiriquí)
  • A.a. coloratus:
  • Subtropical western Panama (eastern Chiriquí and Veraguas)
  • A.a. azuerensis:
  • Western Panama (Azuero Peninsula)

Habitat

Forest edge, clearings, and high-altitude shrubland, sometimes in areas best described as cloud forest. In Mexico often in areas with mixture of pine and other trees. Often described as preferring the thickest undergrowth.

Behaviour

Likes to keep hidden except when singing, and probably not easy to see even then.

Diet

Their diet consists of a variety of insects and seeds. They mostly seek food on the ground or low above the ground. They mostly move around hopping and may follow army ant swarms.

Breeding

This species uses various dry vegetable materials to build a nest without a top covering and lines it with additional material more suited to cushioning the eggs. . It's placed around a half meter to as much as 3m above the ground in in heavier brush or occasionally on the earth. Times of this process vary from April to September depending on the location.

Vocalisations

A series of about 6 notes given in a measured, steady pace.

References

  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, T. A. Fredericks, J. A. Gerbracht, D. Lepage, S. M. Billerman, B. L. Sullivan, and C. L. Wood. 2022. The eBird/Clements checklist of Birds of the World: v2022. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/
  2. Ridgely & Gwynne 1989. Birds of Panama. Princeton Paperbacks. ISBN 0691025126
  3. Howell & Webb, 1995. A guide to the birds of Mexico and northern Central America. Oxford University Press. ISBN 0198540124
  4. Rising, J. D. (2020). White-naped Brushfinch (Atlapetes albinucha), 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.wnbfin1.01
  5. Rising, J. D. (2020). White-naped Brushfinch (Atlapetes albinucha), 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.wnbfin1.01

Recommended Citation

External Links

GSearch checked for 2020 platform.1

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