White-headed wren

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White-headed wren
White-headed Wren.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Troglodytidae
Genus: Campylorhynchus
Species:
C. albobrunneus
Binomial name
Campylorhynchus albobrunneus
(Lawrence, 1862)
Campylorhynchus albobrunneus map.svg

The white-headed wren (Campylorhynchus albobrunneus) is a species of bird in the family Troglodytidae. It is found in Colombia and Panama. [2]

Contents

Taxonomy and systematics

The white-headed wren has in the past been treated as conspecific with band-backed wren (Campylorhynchus zonatus) and with thrush-like wren (C. turdinus). Molecular analyses refuted that treatment and confirmed that it is a separator species.

The white-headed wren has two recognized subspecies, the nominate C. a. albobrunneus and C. a. harterti.

Canopy Camp - Darien, Panama White-headed Wren2.jpg
Canopy Camp - Darien, Panama

Description

The white-headed wren is 18.5 cm (7.3 in) long and weighs 27.5 to 39 g (0.97 to 1.38 oz). It is unique among wrens, having essentially only two colors in large blocks. The sexes are alike. The nominate adult's entire head, nape, and underside from the throat through the lower belly are pure white. The rest of the body but for the vent area is dull blackish brown; the vent is gray-brown. C. a. harterti differs from the nominate only in having darker upperparts. The juvenile has a streaky gray-brown crown, a buffy face and underparts, and a pale cinnamon belly. [3]

Distribution and habitat

The nominate white-headed wren is found only in Panama, from the Canal Zone east to western Darién Province. C. a. harterti is found from eastern Darién through western Colombia almost to Ecuador. It inhabits both pristine and disturbed humid forest with epiphytes. In elevation it ranges from sea level to 1,500 m (4,900 ft). [3]

Behavior

Feeding

There are few data about the white-headed wren's diet though it is known to include beetles, ants, and other insects. It forages mostly in the middle to upper levels of the forest and frequently investigates epiphytes. It often forages in small groups that are probably extended families. [3]

Breeding

A few white-headed wren nests have been found; they are globular with a side entrance and sited in epiphytes. No other information on its breeding phenology has been published. [3]

Vocalization

Both sexes of the white-headed wren sing "a series of harsh scratchy notes" . Its call is "a harsh 'kahk'" . [3]

Status

The IUCN has assessed the white-headed wren as being of Least Concern. Though its population has not been quantified, it appears to be stable. [1]

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References

  1. 1 2 BirdLife International (2016). "White-headed Wren Campylorhynchus albobrunneus". IUCN Red List of Threatened Species . 2016. Retrieved 30 May 2021.
  2. Gill, F.; Donsker, D.; Rasmussen, P. (January 2021). "IOC World Bird List (v 11.1)" . Retrieved January 14, 2021.
  3. 1 2 3 4 5 Kroodsma, D. E. and D. Brewer (2020). White-headed Wren (Campylorhynchus albobrunneus), 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.whhwre1.01 retrieved May 30, 2021