Ochraceous wren
In Costa Rica
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Troglodytidae
Genus: Troglodytes
Species:
T. ochraceus
Binomial name
Troglodytes ochraceus
Ridgway, 1882

The ochraceous wren (Troglodytes ochraceus) is a small songbird of the wren family. It is a resident breeding species in Costa Rica, Panama, and Colombia.[2][3][4]

Taxonomy and systematics

The ochraceous wren was previously considered to be a subspecies of mountain wren (Troglodytes solstitialis).[5] The International Ornithological Committee (IOC) recognizes two subspecies, the nominate Troglodytes ochraceus ochraceus and T. o. festinus.[2] The Cornell Lab of Ornithology's Birds of the World and the Clements taxonomy split T. o. ligea from the nominate subspecies.[5][6]

Description

The adult ochraceous wren is 9.5 to 10 cm (3.7 to 3.9 in) long and weighs 8 to 10 g (0.28 to 0.35 oz). The nominate subspecies sensu stricto has a rich medium brown crown and back with a rufous cast to the rump. The tail is brown with blackish bars. It has a bold yellowish buff supercilium that extends to the nape. Its chin, throat, and upper chest are buffy brown, its lower breast and upper belly buffy white, and its flanks and lower belly darker buffy brown. T. o. ligea, when treated separately, is duller than the nominate and has a heavier bill. T. o. festinus is smaller and lighter below than the nominate and also has a larger bill.[5]

Distribution and habitat

According to the IOC, the nominate subspecies of ochraceous wren is found in the Costa Rica highlands from the Tilarán Mountains to the Talamanca ranges and in western and central Panama. Cornell and Clements treat the Panamanian population as T. o. ligea and confine T. o. ochraceus to Costa Rica. All three place T. o. festinus in eastern Panama; Cornell, Clements, and the South American Classification Committee of the American Ornithological Society (SACC/AOS) note its occurrence in adjacent northwestern Colombia as well.[2][5][6][4]

The ochraceous wren primarily inhabits wet epiphyte-laden montane forest, and also semi-open areas such as woodland edges, tall second growth, and pastures with trees. In elevation it usually ranges between 900 and 2,450 m (2,950 and 8,040 ft) but has occasionally been recorded as low as 600 m (2,000 ft) and as high as 3,000 m (9,800 ft).[5]

Behavior

Feeding

The ochraceous wren mostly forages on mossy tree trunks and in epiphytes. Its prey is small invertebrates.[5][7]

Breeding

The ochraceous wren's nesting period apparently spans from April to July in Costa Rica. Skutch (1960) found three nests; all were constructed in a mass of epiphytes and debris on a hanging, partially detached, branch 40 to 50 ft (12 to 15 m) above ground. Families of two adults and two young have been observered.[5][7]

Vocalization

The ochraceous wren's song is "a rather subdued medley of varied liquid trills and high, thin slurred whistles" and it calls "a rolling, thin high-pitched 'peeer' or 'peeew' and low, weak 'churr'."[5]

Status

The IUCN has assessed the ochraceous wren as being of Least Concern.[1] Though its population has not been quantified, it is believed to be fairly common, and it occurs in several national parks and biological reserves.[5]

References

Wikimedia Commons has media related to Troglodytes ochraceus.
  1. 1 2 BirdLife International (2016). "Ochraceous Wren Troglodytes ochraceus". IUCN Red List of Threatened Species. 2016. Retrieved 13 July 2021.
  2. 1 2 3 Gill, F.; Donsker, D.; Rasmussen, P. (January 2021). "IOC World Bird List (v 11.1)". Retrieved January 14, 2021.
  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 23 May 2021. A classification of the bird species of South America. American Ornithological Society. https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm retrieved May 24, 2021
  4. 1 2 Avendaño, Jorge E.; Bohórquez, Clara I.; Rosselli, Loreta; Arzuza-Buelvas, Diana; Estela, Felipe A.; Cuervo, Andrés M.; Stiles, F. Gary; Renjifo, Luis Miguel (February 16, 2018). "Species lists of birds for South American countries and territories: Colombia". Asociación Colombiana de Ornitología checklist committee and the South American Classification Committee of the American Ornithological Society. Retrieved July 13, 2021.
  5. 1 2 3 4 5 6 7 8 9 Kroodsma, D. E. and D. Brewer (2020). Ochraceous Wren (Troglodytes ochraceus), 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.ochwre1.01 retrieved July 13, 2021
  6. 1 2 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
  7. 1 2 Skutch, Alexander F. (1960). "Ochraceous wren" (PDF). Life Histories of Central American Birds II. Pacific Coast Avifauna, Number 34. Berkeley, California: Cooper Ornithological Society. pp. 166–169.
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