Data Zone
Taxonomic note
Dyaphorophyia chalybea (del Hoyo and Collar 2016) was previously listed as Platysteira chalybea.
Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and 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 | medium |
| Land-mass type | Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence (breeding/resident) | 1,120,000 km2 | |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | unknown | - | - | - |
| Population trend | decreasing | - | suspected | - |
| Generation length | 3.75 years | - | - | - |
Population justification: The global population size has not been quantified, but the species is described as locally common (del Hoyo et al. 2006). This species is considered to have a medium dependency on forest habitat, and tree cover is estimated to have declined by 4% within its mapped range over the past 10 years (Global Forest Watch 2022, using Hansen et al. [2013] data and methods disclosed therein). Therefore, as a precautionary measure, it is tentatively suspected that this loss of cover may have led to a decline of between 1-19% in the species' population size over the same time frame.
Trend justification: .
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| Angola | extant | native | yes | |||
| Cameroon | extant | native | yes | |||
| Equatorial Guinea | extant | native | yes | |||
| Gabon | extant | native | yes |
| Country/Territory | IBA Name |
|---|---|
| Angola | Gabela |
| Cameroon | Bakossi mountains |
| Cameroon | Banyang Mbo Wildlife Sanctuary |
| Cameroon | Boumba - Bek |
| Cameroon | Campo Ma'an complex |
| Cameroon | Lobéké National Park |
| Cameroon | Mbam Djerem National Park |
| Cameroon | Mont Manengouba |
| Cameroon | Mont Nlonako |
| Cameroon | Mount Kupe |
| Cameroon | Mount Rata and Rumpi Hills Forest Reserve |
| Cameroon | Nki |
| Equatorial Guinea | Monte Alen National Park |
| Gabon | Ipassa Strict Nature Reserve |
| Gabon | Lopé Faunal Reserve |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Artificial/Terrestrial | Subtropical/Tropical Heavily Degraded Former Forest | suitable | resident |
| Forest | Subtropical/Tropical Moist Montane | major | resident |
| Altitude | 0 - 1950 m | Occasional altitudinal limits |
Recommended citation
BirdLife International (2024) Species factsheet: Black-necked Wattle-eye Dyaphorophyia chalybea. Downloaded from
https://datazone.birdlife.org/species/factsheet/black-necked-wattle-eye-dyaphorophyia-chalybea 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.