Sclater's wren

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Sclater's wren
Campylorhynchus humilis, Playa el Arrocito, Oaxaca (24611156896).jpg
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Troglodytidae
Genus: Campylorhynchus
Species:
C. humilis
Binomial name
Campylorhynchus humilis
PL Sclater, 1857
Campylorhynchus humilis map.svg

Sclater's wren (Campylorhynchus humilis) is a songbird of the family Troglodytidae. It is endemic to Mexico. [2]

Contents

Taxonomy and systematics

What is now Sclater's wren was previously treated as one of eight subspecies of rufous-naped wren (Campylorhynchus rufinucha). A 2009 publication proposed that Campylorhynchus rufinucha ( sensu lato ) be split into three species [3] and the International Ornithological Committee (IOC) accepted the splits. What had been C. r. humilis was elevated to species status as Sclater's wren. The reduced C. rufinucha received the new English name Veracruz wren and the other six subspecies became subspecies of C. capistratus, the rufous-backed wren. [2]

BirdLife International (BLI) has implemented the split but retains the English name rufous-naped wren for C. rufinucha. [1] However, the North American Classification Committee of the American Ornithological Society (NACC/AOS) and the Clements taxonomy have not accepted the split as of early 2021. [4] [5]

Description

The adult Sclater's wren has a reddish brown crown, blackish lores and eyestripe, and a white supercilium. Its nape and back are chestnut and its tail is gray-brown with darker bars and a white tip. Its chin and throat are white, the chest pale buff, and its belly a darker buff with faint blackish bars on the flanks. The juvenile is similar but its supercilium is buffy white, the back a duller chestnut, and the markings on the back less distinct. [6]

Distribution and habitat

Sclater's wren is endemic to Mexico. It is found in from Colima south through Michoacán to Guerrero and east to Oaxaca and southwestern Chiapas. It inhabits lowland dry tropical forest, primarily in arid and semi-arid areas. It also occurs in human-modified landscapes and coastal mangroves. In elevation it ranges from sea level to 1,200 m (3,900 ft). [6]

Behavior

Feeding

Sclater's wren preys on a variety of insects. [6]

Breeding

Little information is available on Sclater's wren's breeding phenology. It is known to build a globular nest with a side entrance like the other species in its genus. It typically constructs them in thorny bushes and trees, especially Vachellia collinsii . [6]

Vocalization

An example of the Sclater's wren song is . An example call is .

Status

The IUCN has assessed Sclater's wren as being of Least Concern. "The population has not been quantified since the species was split" but "is suspected to be stable in the absence of evidence for any declines or substantial threats." [1]

Related Research Articles

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References

  1. 1 2 3 BirdLife International (2016). "Sclater's Wren Campylorhynchus humilis". IUCN Red List of Threatened Species . 2016. Retrieved 31 May 2021.
  2. 1 2 Gill, F.; Donsker, D.; Rasmussen, P. (January 2021). "IOC World Bird List (v 11.1)" . Retrieved January 14, 2021.
  3. Vázquez-Miranda, H.; Navarro-Sigüenza, A.G.; Omland, K.E. (2009). "Phylogeography of the Rufous-naped Wren (Campylorhynchus rufinucha): Speciation and hybridization in Mesoamerica". Auk. 126: 765–778.
  4. "Check-list of North and Middle American Birds". American Ornithological Society. June 30, 2020. Retrieved July 1, 2020.
  5. Clements, J. F., T. S. Schulenberg, M. J. Iliff, S. M. Billerman, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2019. The eBird/Clements Checklist of Birds of the World: v2019. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/ Retrieved August 15, 2019
  6. 1 2 3 4 Bradley, D. W. and D. J. Mennill (2020). Rufous-naped Wren (Campylorhynchus rufinucha), version 1.0. In Birds of the World (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.runwre1.01 retrieved May 31, 2021