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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: Turdus assimilis

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 6
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). Despite the fact that the population trend appears to be decreasing, the decline is not believed to be sufficiently rapid to approach the thresholds for Vulnerable 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 500,000-4,999,999 individuals (A. Panjabi in litt. 2008).

Population Trend
Decreasing
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Wikipedia

White-throated thrush

The white-throated thrush (Turdus assimilis) is a species of bird in the Turdidae family. It is found in Belize, Colombia, Costa Rica, Ecuador, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama, and the United States. Its natural habitats are subtropical or tropical dry forests, subtropical or tropical moist lowland forests, and subtropical or tropical moist montane forests. It is common in its range and an extremely rare vagrant into Texas; 2 sightings have been recorded (in 1990 and 1998).[2]

There are 11 subspecies, some of which are treated as separate species by some authorities.

This species has been referred to in some literature as "white-throated robin." However, that name is now more usually applied to the European species Irania gutturalis.

Description[edit]

The white-throated thrush measures about 23 cm (9.1 in).[3] It features a distinctive black and white streaked throat bounded by a solid white crescent. Breast is light gray to gray-brown, back is dark gray to gray-brown. It also has bold yellow eyerings, bill and feet. Some birds in eastern Panama have dark bills and ruddier upperparts.[4]

References[edit]

  1. ^ BirdLife International (2012). "Turdus assimilis". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 26 November 2013. 
  2. ^ "White-throated Thrush". Texasbirds.org. Texas Ornithological Society. 1997. Retrieved 29 June 2014. 
  3. ^ Garrigues, Richard; Dean, Robert (2007). The Birds of Costa Rica. Ithaca: Zona Tropical/Comstock/Cornell University Press. p. 250. ISBN 978-0-8014-7373-9. 
  4. ^ Angehr, George R.; Dean, Robert (2010). The Birds of Panama. Ithaca: Zona Tropical/Comstock/Cornell University Press. p. 304. ISBN 978-0-8014-7674-7. 
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