Data Zone
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 |
|---|---|---|
| 2018 | 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 | 20 g |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence (breeding/resident) | 1,080,000 km2 | medium |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | unknown | - | - | - |
| Population trend | stable | - | suspected | - |
| Generation length | 3 years | - | - | - |
Population justification: The global population size has not been quantified, but the species is described as rare (Clement 1999).
Trend justification: The population is suspected to be stable in the absence of evidence for any declines or substantial threats.
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| Congo | extant | native | yes | |||
| Congo, The Democratic Republic of the | extant | native | yes | |||
| Uganda | extant | native | yes |
| Country/Territory | IBA Name |
|---|---|
| Congo | Nouabalé-Ndoki National Park complex |
| Congo, The Democratic Republic of the | Forests west of Lake Edward |
| Congo, The Democratic Republic of the | Itombwe Mountains |
| Congo, The Democratic Republic of the | Kahuzi-Biega National Park |
| Congo, The Democratic Republic of the | Lomako - Yekokora |
| Congo, The Democratic Republic of the | Maiko National Park |
| Congo, The Democratic Republic of the | Mount Hoyo Reserve |
| Congo, The Democratic Republic of the | Ngiri |
| Congo, The Democratic Republic of the | Okapi Faunal Reserve |
| Congo, The Democratic Republic of the | Salonga National Park |
| Congo, The Democratic Republic of the | Virunga National Park |
| Uganda | Semliki National Park |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Forest | Subtropical/Tropical Moist Lowland | major | resident |
| Altitude | Occasional altitudinal limits |
| Purpose | Scale |
|---|---|
| Pets/display animals, horticulture | international |
Recommended citation
BirdLife International (2024) Species factsheet: Grant's Bluebill Spermophaga poliogenys. Downloaded from
https://datazone.birdlife.org/species/factsheet/grants-bluebill-spermophaga-poliogenys on 23/12/2024.
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 23/12/2024.