Corvus woodfordi Ogilvie-Grant, 1887

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Eats the most grain, compared with other corvids, but will also eat fruit, insects and other invertebrates, eggs, garbage and carrion (dead animals). Often seen feeding along roads. Perches on the heads of crop plants or on tall artificial structures.

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Rights holder/AuthorKaterina Tvardikova
Sourcehttp://pngbirds.myspecies.info/node/341

Not Threatened

Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/AuthorKaterina Tvardikova
Sourcehttp://pngbirds.myspecies.info/node/341

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

Although this species may have a restricted range, it is not believed to 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.

History

  • Least Concern (LC)
  • Least Concern (LC)
  • Least Concern (LC)
  • Lower Risk/least concern (LR/lc)
  • Lower Risk/near threatened (LR/nt)
  • Lower Risk/least concern (LR/lc)
Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/AuthorInternational Union for Conservation of Nature and Natural Resources
Sourcehttp://www.iucnredlist.org/apps/redlist/details/22705969

Population:

Population

The global population size has not been quantified, but the species is reported to be widespread in forests (Madge and Burn 1993).

Population Trend

Stable
Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/AuthorInternational Union for Conservation of Nature and Natural Resources
Sourcehttp://www.iucnredlist.org/apps/redlist/details/22705969

Range:

Guadalcanal (Solomon Islands).

  • Clements, J. F., T. S. Schulenberg, M. J. Iliff, B.L. Sullivan, C. L. Wood, and D. Roberson. 2012. The eBird/Clements checklist of birds of the world: Version 6.7. Downloaded from http://www.birds.cornell.edu/clementschecklist/downloadable-clements-checklist
Licensehttp://creativecommons.org/licenses/by-nc/3.0/
Rights holder/AuthorCornell Laboratory of Ornithology
SourceNo source database.

Range Description:

This species is restricted to the islands of Choiseul, Santa Isabel and Guadalcanal in the Solomon Islands.

Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/Author© International Union for Conservation of Nature and Natural Resources
Sourcehttp://www.iucnredlist.org/apps/redlist/details/106005769

Habitat and Ecology:

Habitat and Ecology

The species is found in forest and some degraded forest habitats to an altitude of 1,000 m, occasionally 1,250 m.

Systems

  • Terrestrial
Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/Author© International Union for Conservation of Nature and Natural Resources
Sourcehttp://www.iucnredlist.org/apps/redlist/details/106005769

IUCN Red List Assessment:
Red List Category

LC
Least Concern

Red List Criteria

Version

3.1

Year Assessed

2009

Assessor/s

BirdLife International

Reviewer/s

Bird, J., Butchart, S.

Contributor/s

Justification

Although this species may have a restricted range, it is not believed to 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.

History

  • 2008
    Least Concern
  • 2004
    Least Concern
Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/Author© International Union for Conservation of Nature and Natural Resources
Sourcehttp://www.iucnredlist.org/apps/redlist/details/106005769

Population:

Population

The global population size has not been quantified, but the species is reported to be widespread in forests (Madge and Burn 1993).
Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/Author© International Union for Conservation of Nature and Natural Resources
Sourcehttp://www.iucnredlist.org/apps/redlist/details/106005769

White-billed crow:

The white-billed crow (Corvus woodfordi) is a member of the crow family found on the Solomon Islands.

It is a short and stocky forest bird (40–41 cm in length) with a short, squared-off tail and a relatively large head with a very distinctive deep and curved pale ivory-coloured bill with a darker tip. The dark nasal bristles, though not thick, are quite apparent against the pale coloured bill. The bird overall is very glossy black with a greenish-purple gloss to the head and purple gloss to the rest of the body. The iris is pale grey or white in the adult bird and the legs and feet are black.

The voice is described as being reminiscent of the Torresian crow but higher in pitch and faster, giving an "ao-ao-ao" sound.

This species is confined to the central part of the Solomon Islands and can be found specifically on the islands of Choiseul, Isabel and Guadalcanal where it forages in small family groups through the trees, feeding on various insects and fruits. It is normally difficult to view as it often remains well hidden in the high forest canopy while feeding and even flying low, just over the tops of the trees when moving on.

As is the case with many forest crows, there is little information on the species' breeding habits.

References[edit]

  1. ^ BirdLife International (2012). "Corvus woodfordi". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 26 November 2013. 

Licensehttp://creativecommons.org/licenses/by-sa/3.0/
Rights holder/AuthorWikipedia
Sourcehttp://en.wikipedia.org/w/index.php?title=White-billed_crow&oldid=634071281
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