Harteman Wildfowl, presented by Jan Harteman

Baer's pochard / Baer's White-eyed pochard

Aythya baeri

Baer's witoogeend

The Baer's pochard is a diving duck found in eastern Asia. It breeds in southeast Russia and northeast China, migrating in winter to southern China, VietnamJapan, and IndiaBaer's pochard breeds around lakes with rich aquatic vegetation, nesting in dense grass, flooded tussock meadows, or flooded shrubby meadows. In Liaoning, China, it is normally found in densely vegetated coastal wetlands, or around lakes and ponds surrounded by forest. In winter, it occurs on freshwater lakes and reservoirs.

 

This species has been uplisted to Critically Endangered (IUCN, 2012) owing to an apparent acceleration in the rate of its decline, as measured by numbers on both the breeding and wintering grounds. It is now absent or occurs in extremely reduced numbers over the majority of its former breeding and wintering grounds and is common nowhere. It is thought that hunting and wetland destruction are the key reasons for its decline.

 

W. Xin, C. Lei, L. Jinyu and T. Fox in litt. (2012) stated that 'we fear that the global population is now less than 1,000 individuals and could be very much lower than this', and so it is placed in the band 250-999 individuals, equating to 167-666 mature individuals, rounded here to 150-700 mature individuals.

 

It breeds around lakes with rich aquatic vegetation in dense grass or flooded tussock/shrubby meadows. In Liaoning, China, it is usually found in coastal wetlands with dense vegetation, or on rivers and ponds surrounded by forest. The nest is built on a tussock or under shrubs, sometimes floating, and occasionally amongst branches. In winter, it occurs on freshwater lakes and reservoirs.

 

Threats are poorly understood, but hunting and wetland destruction in its breeding, wintering and staging grounds are probably the reasons for its decline. In several cases, the loss of populations from former important areas have been preceded by low water levels or complete drying up of water bodies (e.g. the loss of the breeding population at Xianghai Reserve and the wintering population at Baiquan wetlands in Wuhan [J. Hornskov in litt. 2005, S. Chowdhury in litt. 2010, W. Xin, C. Lei, L. Jinyu and T. Fox in litt.2012]). There are unconfirmed reports of high mortality from hunting, including a report of 3,000 individuals being shot annually at Rudong, Jiangsu Province (Lei Gang 2010); however, this is very likely an overestimate and may be due to the translation of the species name (Baer’s Pochard is synonymous with Mallard in Chinese) (S. Chan in litt.2011).

 

Conservation Actions Underway
CMS Appendix II. It is legally protected in Russia, Mongolia and Hong Kong (China) and in some provinces in China. Some of its breeding and wintering sites are within protected areas, including Daursky, Khanka lake and Bolon lake (Russia), Sanjiang and Xianghai (China), Mai Po (Hong Kong), Koshi Barrage (Nepal), and Thale Noi (Thailand).

 

Conservation Actions Proposed
Research its population, distribution, ecology and threats in order to produce conservation recommendations. Research the species's breeding distribution and biology and feeding biology. Establish more protected areas in its breeding grounds. Extend the area of the Khanka Lake Reserve (Russia). Designate the Xianghai Nature Reserve (China) as a restricted area during the breeding season. Regulate hunting of all Anatidae species in China. Ensure legal protection of this species in all range states.

 

More information: http://www.iucnredlist.org/details/100600478/0

http://www.birdlife.org/datazone/speciesfactsheet.php?id=478

 

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Above: Baer's pochard male, breeding plumage

 

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Above: Baer's pochard copulating

 

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Above: Baer's pochard male, breeding plumage

 

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Above: Baer's pochard female

 

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Above: Baer's pochards (male in front) in summer plumage.

 

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Above: adult male display behaviour

 

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Above: 1 year old pair of Baer's pochard

 

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Above: two adult males in courtship behaviour (winter plumage)

 

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Above: adult male (winter plumage)

 

Above: video clip of Baer's pochard in summer plumage.

 

Above: 1 year old pair of Baer's pochard in winter plumage

 

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Above: four species of white-eyed pochards. Click the image to enlarge. 

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