Overview

Distribution

Range Description

Accipiter butleri is endemic to the Nicobar Islands in the Bay of Bengal, India, where it is only known with certainty from Car Nicobar and Katchall. As many islands in the archipelago are poorly studied, it is possible that it is more widely distributed. There are no confirmed recent records, and there have been no population estimates.
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
Apparently restricted to forested habitats. There is very little information available about its breeding and feeding ecology. Lizards and insects have been recorded as food items.

Systems
  • Terrestrial
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
VU
Vulnerable

Red List Criteria
C2a(ii)

Version
3.1

Year Assessed
2008

Assessor/s
BirdLife International

Reviewer/s
Butchart, S., Bird, J., Crosby, M.

Contributor/s

Justification
This species qualifies as Vulnerable because it is estimated to have a small population which is suspected to be declining as a result of forest loss.

History
  • 2004
    Vulnerable
  • 2002
    Vulnerable
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Population

Population
Its status and population size are very poorly known. Owing to its apparent scarcity, the species's restricted range and difficulty in identification it is best placed in the band 2,500-10,000 individuals.

Population Trend
Decreasing
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Threats

Threats

Major Threats
The primary threat to this species appears to be habitat loss and degradation, and this has accelerated since the arrival of migrants from mainland India in the late 1960s. Clearance for agriculture and development have increased and have exacerbated soil erosion problems. The impacts of the Tsunami in 2004, which destroyed significant areas of habitat across the islands, have not been investigated for this species.
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Management

Conservation Actions

Conservation Actions
Conservation Actions Underway
Protected under Indian Wildlife legislation. No conservation measures are known to have been taken.

Conservation Actions Proposed
*Investigate its ecological requirements. *Conduct detailed surveys of the archipelago to determine the true status of this species. *Develop a protected area on Katchall. *Evaluate forest conservation opportunities on Car Nicobar, which is already damaged by human settlement, before it is too late.

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Wikipedia

Nicobar Sparrowhawk

The Nicobar Sparrowhawk (Accipiter butleri) is a species of bird of prey in the Accipitridae family. It is endemic to the Nicobar Islands of India. There are two subspecies, the nominate race which is found on Car Nicobar in the north of the archipelago, and A. b. obsoletus, from Katchal and Camorta in the central part of the Nicobars. A museum specimen originally attributed to this species from the island of Great Nicobar was later found to be a misidentified Besra.[2]

Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by habitat loss.

References

  1. ^ BirdLife International (2008). Accipiter butleri. In: IUCN 2008. IUCN Red List of Threatened Species. Downloaded on 19 February 2009.
  2. ^ Rasmussen, Pamela (2000). "On the status of the Nicobar Sparrowhawk Accipiter butleri on Great Nicobar Island, India". Forktail 16: 185. http://www.orientalbirdclub.org/publications/forktail/16pdfs/Rasmussen-Sparrowhawk.pdf. 
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