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. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| Year | Category | Criteria |
|---|---|---|
| 2024 | Least Concern | |
| 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 | low |
| Land-mass type | Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence (breeding/resident) | 18,500,000 km2 | medium |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | 16700-83300 mature individuals | poor | estimated | 2023 |
| Population trend | unknown | - | - | - |
| Generation length | 7.76 years | - | - | - |
Population justification: The global population size is estimated at 25,001-125,000 individuals (Wetlands International 2023), which equates to 16,700-83,300 mature individuals. The overall population trend is unknown (Wetlands International 2023).
Trend justification: .
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| Angola | extant | native | yes | |||
| Botswana | extant | native | yes | |||
| Burkina Faso | extant | native | yes | |||
| Burundi | extant | native | yes | |||
| Cameroon | extant | native | yes | |||
| Central African Republic | extant | native | yes | |||
| Congo | extant | native | yes | |||
| Congo, The Democratic Republic of the | extant | native | yes | |||
| Côte d'Ivoire | extant | native | yes | |||
| Eswatini | extant | native | yes | |||
| Ethiopia | extant | native | yes | |||
| Gabon | extant | native | yes | |||
| Ghana | extant | native | yes | |||
| Kenya | extant | native | yes | |||
| Liberia | extant | native | yes | |||
| Malawi | extant | native | yes | |||
| Mozambique | extant | native | yes | |||
| Namibia | extant | native | yes | |||
| Niger | extant | native | yes | |||
| Nigeria | extant | native | yes | |||
| Rwanda | extant | native | yes | |||
| Senegal | extant | native | yes | |||
| Somalia | extant | native | yes | |||
| South Africa | extant | native | yes | |||
| Tanzania | extant | native | yes | |||
| Uganda | extant | native | yes | |||
| Zambia | extant | native | yes | |||
| Zimbabwe | extant | native | yes |
| Country/Territory | IBA Name |
|---|
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Forest | Subtropical/Tropical Mangrove Vegetation Above High Tide Level | suitable | resident |
| Marine Intertidal | Rocky Shoreline | suitable | resident |
| Marine Intertidal | Sandy Shoreline and/or Beaches, Sand Bars, Spits, Etc | suitable | resident |
| Marine Intertidal | Shingle and/or Pebble Shoreline and/or Beaches | suitable | resident |
| Savanna | Dry | suitable | resident |
| Shrubland | Subtropical/Tropical Moist | suitable | resident |
| Wetlands (inland) | Permanent Freshwater Lakes (over 8ha) | suitable | resident |
| Wetlands (inland) | Permanent Rivers/Streams/Creeks (includes waterfalls) | suitable | resident |
| Altitude | 0 - 1800 m | Occasional altitudinal limits |
Recommended citation
BirdLife International (2024) Species factsheet: Water Thick-knee Burhinus vermiculatus. Downloaded from
https://datazone.birdlife.org/species/factsheet/water-thick-knee-burhinus-vermiculatus on 22/11/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from
https://datazone.birdlife.org/species/search on 22/11/2024.