Anas formosa

Scientific name:

Anas formosa

Threat level:

Vulnerable

Authority:

Georgi, 1775

Common names:

• Baikal teal (English)
• Cerceta del baikal (Spanish)

Version:

3.1

Year assessed:

2008

Assessor(s):

BirdLife International

Evaluator(s):

Bird, J., Butchart, S. & Crosby, M. (BirdLife International Red List Authority)

Justification:

This species tends to congregate in very large flocks, and suffered rapid declines in many parts of its range during the twentieth century because of hunting and other threats. Although counts of wintering individuals in Korea have increased spectacularly over recent years, its roost sites are unprotected, large numbers died in a recent disease outbreak, and most importantly, the dry rice paddies where it feeds are being converted to vegetable farms and other uses. It is therefore projected to undergo a rapid decline in the immediate future, and hence the species is still listed as Vulnerable. If these land-use changes do not occur as rapidly as predicted, or if significant populations are found in China, then it may warrant downlisting to Near Threatened.

Geographic ranges:

• China (Native)
• Japan (Native)
• Korea, Democratic People's Republic Of (Native)
• Korea, Republic Of (Native)
• Bangladesh (Vagrant)
• Hong Kong (Vagrant)
• India (Vagrant)
• Myanmar (Vagrant)
• Nepal (Vagrant)
• Taiwan, Province Of China (Vagrant)
• Thailand (Vagrant)
• Pakistan (Presence uncertain)

Population trend:

Decreasing

Ecosystems

• Freshwater

List of habitats:

• Wetlands (inland)
• Permanent Rivers/Streams/Creeks (includes waterfalls)
• Bogs, Marshes, Swamps, Fens, Peatlands
• Permanent Freshwater Lakes (over 8ha)
• Permanent Freshwater Marshes/Pools (under 8ha)
• Artificial/Terrestrial
• Arable Land

List of threats:

• Residential & commercial development
• Commercial & industrial areas
• Agriculture & aquaculture
• Annual & perennial non-timber crops
• Agro-industry farming
• Transportation & service corridors
• Flight paths
• Biological resource use
• Hunting & trapping terrestrial animals
• Intentional use (species is the target)
• Invasive & other problematic species & genes
• Problematic native species
• Pollution
• Domestic & urban waste water
• Type Unknown/Unrecorded
• Climate change & severe weather
• Habitat shifting & alteration

List of conservation actions:

• Land/water protection
• Site/area protection
• Species management
• Species management
• Harvest management
• Law & policy
• Legislation
• International level

• BirdLife International 2007. Threatened Birds of the World 2008. Downloaded from http://www.birdlife.org on 04/05/2008.