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LC
White-backed Duck Thalassornis leuconotus

IUCN Red List history

Year Category
2012 Least Concern
2009 Least Concern
2008 Least Concern
2004 Least Concern
2000 Lower Risk/Least Concern
1994 Lower Risk/Least Concern
1988 Lower Risk/Least Concern

Species attributes

Migratory status not a migrant Forest dependency Does not normally occur in forest
Land mass type   Average mass -

Distribution

  Estimate Data quality
Extent of Occurrence breeding/resident (km2) 10,000,000 medium
Number of locations -
Fragmentation -

Population & trend

  Estimate Data quality Derivation Year of estimate
No. of mature individuals 8000-19000 poor Estimated 2009
Population trend Decreasing -
Number of subpopulations - - -
Largest subpopulation - - -
Generation length (yrs) 9.7 - - -
Population justification: The population is estimated to number 12,000-28,000 individuals, roughly equating to 8,000-19,000 mature individuals.
Trend justification: The overall trend is decreasing, although some populations may be stable (Wetlands International 2006).

Country/Territory distribution

Country/Territory Occurrence status Presence Breeding Non-breeding Passage Resident
Angola Native Extant       Yes
Benin Native Extant       Yes
Botswana Native Extant       Yes
Burkina Faso Vagrant Extant   Yes    
Burundi Native Extant       Yes
Cameroon Native Extant       Yes
Chad Native Extant       Yes
Congo Native Extant       Yes
Congo, The Democratic Republic of the Native Extant       Yes
Ethiopia Native Extant       Yes
Kenya Native Extant       Yes
Lesotho Native Extant       Yes
Madagascar Native Extant       Yes
Malawi Native Extant       Yes
Mali Native Extant       Yes
Mauritania Vagrant Extant   Yes    
Mozambique Native Extant       Yes
Namibia Native Extant       Yes
Nigeria Native Extant       Yes
Rwanda Native Extant       Yes
Senegal Native Extant       Yes
Somalia Vagrant Extant   Yes    
South Africa Native Extant Yes      
South Sudan Vagrant Extant   Yes    
Sudan Native Extant       Yes
Swaziland Native Extant       Yes
Tanzania Native Extant       Yes
Togo Vagrant Extant   Yes    
Uganda Native Extant       Yes
Zambia Native Extant       Yes
Zimbabwe Native Extant       Yes

Important Bird Areas where this species has triggered the IBA criteria

Country/Territory IBA Name IBA link
Botswana Okavango Delta site factsheet
South Africa Grasslands site factsheet
South Africa Nyl River Floodplain site factsheet
South Africa Richards Bay Game Reserve site factsheet
Zambia Sumbu National Park and Tondwa Game Management Area site factsheet

Habitats & altitude

Habitat (level 1) Habitat (level 2) Importance Occurrence
Wetlands (inland) Permanent Freshwater Lakes (over 8ha) suitable resident
Wetlands (inland) Permanent Freshwater Marshes/Pools (under 8ha) major resident
Wetlands (inland) Seasonal/Intermittent Freshwater Lakes (over 8ha) suitable resident
Altitude 0 - 0 m Occasional altitudinal limits  

Utilisation

Purpose Primary form used Life stage used Source Scale Level Timing
Food (human) Whole Eggs Wild Subsistence, National Non-trivial Recent
Pets Whole Adults and juveniles Wild International Non-trivial Recent

Recommended citation
BirdLife International (2014) Species factsheet: Thalassornis leuconotus. Downloaded from http://www.birdlife.org on 01/10/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 01/10/2014.

This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.

To provide new information to update this factsheet or to correct any errors, please email BirdLife

To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.

Key facts
Current IUCN Red List category Least Concern
Family Anatidae (Ducks, Geese, Swans)
Species name author Eyton, 1838
Population size 8000-19000 mature individuals
Population trend Decreasing
Distribution size (breeding/resident) 10,000,000 km2
Country endemic? No
Links to further information
- Summary information on this species
- Projected distributions under climate change