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Ecology

Habitat

Habitat and Ecology

Systems
  • Terrestrial
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Source: IUCN

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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Thryothorus rufalbus

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 2
Species With Barcodes: 1
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Source: Barcode of Life Data Systems (BOLD)

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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2012

Assessor/s
BirdLife International

Reviewer/s
Butchart, S. & Symes, A.

Contributor/s

Justification
This species has a very large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend is not known, but the population is not believed to be decreasing sufficiently rapidly to approach the thresholds under the population trend criterion (>30% decline over ten years or three generations). The population size is very large, and hence does not approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.
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Population

Population
Partners in Flight estimate the total population to number 50,000-499,999 individuals (A. Panjabi in litt. 2008).

Population Trend
Unknown
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Wikipedia

Rufous-and-white Wren

The Rufous-and-white Wren (Thryophilus rufalbus) is a small songbird of the wren family. It is a resident breeding species from southwesternmost Mexico to northern Colombia and northwestern Venezuela. It was formerly placed in the genus Thryothorus (Mann et al., 2006).

This large wren breeds in lowlands and foothills from sea level up to 1500 m altitude in dry forests or, in wetter areas, more open scrubby woodland. In Central America, it mainly occurs on the Pacific side of the central mountain ranges Its flask-shaped nest is constructed 2–3 m high in a tree or shrub. The female alone incubates the three or four greenish-blue eggs for about two weeks to hatching, and the young fledge in about the same length of time again.

The adult Rufous-and-white Wren is 14–15 cm long and weighs 22-25 g. It has chestnut brown upperparts with a darker crown, strong white supercilium, brown stripe through the eye and black streaking on the cheeks. The underparts are white, with black barring on the lower belly and brown flanks. The wings and tail are barred with black. Young birds have duller upperparts and buff-tinged underparts. The subspecies T. r. minlosi of the Andean foothills of Venezuela has a greyish tinge to the crown and underparts.

The call of this species is a sharp chek or explosive tuck, and the song is a melodious and very distinctive sequence of slow hooting whistles, such as weee, boo, boo, booo, boo, whit. Pairs may duet, with the second bird responding with a purring ou-ou-ou-oouu,u,u,u.

The Rufous-and-white Wren forages actively in low vegetation or on the ground in pairs; it is a shy species more often heard than seen. It mainly eats insects, spiders and other invertebrates

References[edit]

  • Mann, Nigel I.; Barker, F. Keith; Graves, Jeff A.; Dingess-Mann, Kimberly A. & Slater, Peter J. B. (2006): Molecular data delineate four genera of "Thryothorus" wrens. Molecular Phylogenetics and Evolution 40: 750–759. doi:10.1016/j.ympev.2006.04.014 (HTML abstract)
  • Stiles, F. Gary & Skutch, Alexander Frank (1989): A guide to the birds of Costa Rica. Comistock, Ithaca. ISBN 0-8014-9600-4
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