Data Zone
Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
del Hoyo, J.; Collar, N. J.; Christie, D. A.; Elliott, A.; Fishpool, L. D. C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Barcelona, Spain and Cambridge UK: Lynx Edicions and BirdLife International.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| Year | Category | Criteria |
|---|---|---|
| 2016 | Least Concern | |
| 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 |
| Migratory status | not a migrant | Forest dependency | Does not normally occur in forest |
| Land mass type | Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence breeding/resident (km2) | 25,900,000 | medium |
| Number of locations | - | |
| Severely Fragmented | - |
| Value | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| No. of mature individuals | 8000-19000 | poor | estimated | 2009 |
| Population trend | Decreasing | suspected | - | |
| Decline (3 years/1 generation past) | - | - | - | |
| Decline (5 years/1 generation past) | - | - | - | |
| Decline (10 years/1 generation past) | - | - | - | |
| Decline (10 years/3 generation future) | - | - | - | |
| Decline (10 years/3 generation past and future) | - | - | - | |
| Number of subpopulations | - | - | - | |
| Percentage in 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 | Occurrence status | Presence | Resident | Breeding | Non-breeding | Passage |
|---|---|---|---|---|---|---|
| Angola | N | Extant | Yes | |||
| Benin | N | Extant | Yes | |||
| Botswana | N | Extant | Yes | |||
| Burkina Faso | V | Extant | Yes | |||
| Burundi | N | Extant | Yes | |||
| Cameroon | N | Extant | Yes | |||
| Chad | N | Extant | Yes | |||
| Congo | N | Extant | Yes | |||
| Congo, The Democratic Republic of the | N | Extant | Yes | |||
| Eswatini | N | Extant | Yes | |||
| Ethiopia | N | Extant | Yes | |||
| Kenya | N | Extant | Yes | |||
| Lesotho | N | Extant | Yes | |||
| Madagascar | N | Extant | Yes | |||
| Malawi | N | Extant | Yes | |||
| Mali | N | Extant | Yes | |||
| Mauritania | V | Extant | Yes | |||
| Mozambique | N | Extant | Yes | |||
| Namibia | N | Extant | Yes | |||
| Nigeria | N | Extant | Yes | |||
| Rwanda | N | Extant | Yes | |||
| Senegal | N | Extant | Yes | |||
| Somalia | V | Extant | Yes | |||
| South Africa | N | Extant | Yes | |||
| South Sudan | V | Extant | Yes | |||
| Sudan | N | Extant | Yes | |||
| Tanzania | N | Extant | Yes | |||
| Togo | V | Extant | Yes | |||
| Uganda | N | Extant | Yes | |||
| Zambia | N | Extant | Yes | |||
| Zimbabwe | N | Extant | Yes |
| Country/Territory | IBA Name |
|---|---|
| Botswana | Okavango Delta |
| South Africa | Nyl River Floodplain |
| South Africa | Grasslands |
| South Africa | Richards Bay Game Reserve |
| Zambia | Sumbu National Park and Tondwa Game Management Area |
| Madagascar | Wetlands of the Tsiribihina delta and upper Tsiribihina river |
| Madagascar | Tsimembo - Manambolomaty - Bemamba Complex NPA |
| 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 | Occasional altitudinal limits |
Recommended citation
BirdLife International (2023) Species factsheet: Thalassornis leuconotus. Downloaded from
http://www.birdlife.org on 29/03/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 29/03/2023.
