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Overview

Distribution

Range

E Australia (Cape York Peninsula to e Victoria).

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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: Taeniopygia bichenovii

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 1
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 an extremely 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 appears to be stable, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size has not been quantified, but it is not believed to 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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Source: IUCN

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Population

Population
The global population size has not been quantified, but the species is described as common or locally common (Clement 1999).

Population Trend
Stable
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Wikipedia

Double-barred Finch

The Double-barred Finch (Taeniopygia bichenovii) is an estrildid finch found in dry savanna, tropical (lowland) dry grassland and shrubland habitats in northern and eastern Australia. They are sometimes referred to as Bicheno's Finch; and also as Owl Finch, owing to the dark ring of feathers around their faces.

The name of the species commemorates James Ebenezer Bicheno, a colonial secretary of Van Diemen's Land appointed in September 1842.

Subspecies[edit]

There are two sub-species:

Characteristics[edit]

This is a 10–11 cm long munia-like finch with a white face bordered with black, brown upperparts and throat, and white underparts. The throat and underparts are separated by another black line. The wings are patterned in brown and white. The sexes are similar, but juveniles are duller and browner. A less common sub-species with brown or black underparts is known to exist. The call is a soft tet or a louder peew, and the song is a soft fluting.

These gregarious seed-eating birds build their nests in grass, a bush or low tree, and lay four eggs.

Origin[edit]

Origin and phylogeny has been obtained by Antonio Arnaiz-Villena et al.[2] Estrildinae may have originated in India and dispersed thereafter (towards Africa and Pacific Ocean habitats).

Gallery[edit]

References[edit]

  1. ^ BirdLife International (2012). "Taeniopygia bichenovii". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 26 November 2013. 
  2. ^ Arnaiz-Villena, A; Ruiz-del-Valle V; Gomez-Prieto P; Reguera R; Parga-Lozano C; Serrano-Vela I (2009). "Estrildinae Finches (Aves, Passeriformes) from Africa, South Asia and Australia: a Molecular Phylogeographic Study". The Open Ornithology Journal 2: 29–36. doi:10.2174/1874453200902010029. 

Video of Double-barred Finches at http://birdwatchersonline.net/forum/showthread.php?t=430

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