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 | |
2013 | 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) | 9,470,000 | medium |
Number of locations | - | |
Severely Fragmented | - |
Value | Data quality | Derivation | Year of estimate | |
---|---|---|---|---|
No. of mature individuals | unknown | not applicable | not applicable | 0 |
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) | 7.8 | - | - | - |
Population justification: The species is reported to be still well represented at some wetland sites in both eastern and southern Africa, especially in Uganda, Botswana and Zambia (Ferguson-Lees et al. 2001). In South Africa, c.3,000-6,000 pairs remain, but populations are declining here (Barnes 2000), as is the case in some other parts of its peripheral range (Brown et al. 1982, Ginn et al. 1989). However, in some huge countries such as Zambia suitable habitat is extensive and the species is still locally common (F. Dowsett-Lemaire and R. J. Dowsett in litt. 2000). The population is preliminarily estimated to number between 10,000-100,000 individuals.
Trend justification: The population is declining owing to drainage and damming of wetland habitats, loss of habitat through over-grazing and human disturbance and , possibly, poisoning owing to over-use of pesticides.
Country/Territory | Occurrence status | Presence | Resident | Breeding | Non-breeding | Passage |
---|---|---|---|---|---|---|
Angola | N | Extant | Yes | |||
Botswana | N | Extant | Yes | |||
Burundi | N | Extant | Yes | |||
Central African Republic | U | Extant | Yes | |||
Congo | N | Extant | Yes | |||
Congo, The Democratic Republic of the | N | Extant | Yes | |||
Eswatini | N | Extant | Yes | |||
Ethiopia | U | Extant | Yes | |||
Kenya | N | Extant | Yes | |||
Lesotho | V | Extinct | Yes | |||
Malawi | N | Extant | Yes | |||
Mozambique | N | Extant | Yes | |||
Namibia | N | Extant | Yes | |||
Nigeria | U | Extant | Yes | |||
Rwanda | N | Extant | Yes | |||
Somalia | V | Extant | Yes | |||
South Africa | N | Extant | Yes | |||
South Sudan | N | Extant | Yes | |||
Sudan | N | Extant | Yes | |||
Tanzania | N | Extant | Yes | |||
Uganda | N | Extant | Yes | |||
Zambia | N | Extant | Yes | |||
Zimbabwe | N | Extant | Yes |
Country/Territory | IBA Name |
---|---|
South Africa | Cape Whale Coast |
South Africa | Barberspan and Leeupan |
South Africa | West Coast National Park and Saldanha Bay islands |
South Africa | KwaZulu-Natal Mistbelt Grasslands |
South Africa | Verlorenvlei Estuary |
South Africa | Ndumo Game Reserve |
Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
---|---|---|---|
Artificial/Terrestrial | Arable Land | suitable | resident |
Grassland | Subtropical/Tropical Dry | suitable | resident |
Wetlands (inland) | Bogs, Marshes, Swamps, Fens, Peatlands | major | resident |
Wetlands (inland) | Permanent Freshwater Marshes/Pools (under 8ha) | suitable | resident |
Altitude | 0 - 3000 m | Occasional altitudinal limits |
Recommended citation
BirdLife International (2022) Species factsheet: Circus ranivorus. Downloaded from
http://www.birdlife.org on 28/06/2022.
Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 28/06/2022.