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Overview

Distribution

Range

Humid forests of s Asia and Malay Archipelago.

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Ecology

Habitat

Habitat and Ecology

Systems
  • Terrestrial
  • Freshwater
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Source: IUCN

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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Gorsachius melanolophus

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 4
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 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 may be small, 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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Population

Population
The global population is estimated to number c.2,000-20,000 individuals (Wetlands International 2006), roughly equivalent to 1,300-13,000 mature individuals. National population sizes have been estimated at c.100-10,000 breeding pairs, c.50-1,000 individuals on migration and c.50-1,000 wintering individuals in Taiwan and c.100-10,000 breeding pairs in Japan (Brazil 2009).

Population Trend
Unknown
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Wikipedia

Malayan night heron

The Malayan night heron (Gorsachius melanolophus) also known as Malaysian night heron, is a medium-sized heron. It is distributed in southern and eastern Asia, breeding in India, Taiwan, China, and the Philippines.

Description[edit]

The Malayan night heron stands about 47 cm tall. The adult is reddish brown with streaked underparts, black underwings, and a black crown. The lores are blue but can vary in colour after moulting. The sexes are similar, but the male may have a darker crest and some birds, especially females, may retain juvenile plumage. The juvenile is greyish brown with black and white spots, and its underparts are streaked.

Biology[edit]

This bird occurs in subtropical and tropical swamps, streams, and marshes, especially in regions with high rainfall. It nests in forests in trees and bamboo, and forages in open areas. The most common food items are earthworms and frogs, and it will sometimes eat fish.[2]

Conservation[edit]

The bird has a large range and its global population is between 2,000 and 20,000 individuals. Its population trend is not known, but it does not meet the criteria for a vulnerable species status.[1]

References[edit]

  1. ^ a b BirdLife International (2012). "Gorsachius melanolophus". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 26 November 2013. 
  2. ^ Chang, C. (2000). Malayan Night Heron Gorsachius melanolophus breeding in immature plumage. Forktail 16 167-8. Downloaded on 26 August 2010.
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