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 |
|---|---|---|
| - | - | B2ab(i,ii,iii,v) |
| Year | Category | Criteria |
|---|---|---|
| 2017 | Vulnerable | B2ab(i,ii,iii,v) |
| 2016 | Vulnerable | B1ab(i,ii,iii,v) |
| 2012 | Vulnerable | B1ab(i,ii,iii,v) |
| 2008 | Vulnerable | B1a+b(i,ii,iii,v) |
| 2004 | Vulnerable | |
| 2000 | Vulnerable | |
| 1996 | Vulnerable | |
| 1994 | Vulnerable | |
| 1988 | Threatened |
| Migratory status | not a migrant | Forest dependency | medium |
| Land-mass type |
Land-mass type - continent |
Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence breeding/resident (km2) | 46,800 | medium |
| Area of Occupancy breeding/resident (km2) | 1,400 | |
| Number of locations | 11-100 | - |
| Severely fragmented? | yes | - |
| Value | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Number of mature individuals | 1500-7000 | poor | estimated | 2007 |
| Population trend | decreasing | medium | suspected | 1998-2008 |
| Generation length (years) | 5.7 | - | - | - |
Population justification: The population in the Udzungwas might only number c.1,000 birds (L. Hansen in litt. 2007), with a more conservative guess being 'some hundred' individuals (Dinesen et al. 2001). The species is common in the Usambara and could number c. 1,000 individuals, maybe more (L. Borghesio in litt. 2016). Thus the total population is placed in the range band for 2,500-9,999 individuals. This equates to 1,667-6,666 mature individuals, rounded here to 1,500-7,000 mature individuals.
Trend justification: The species's population is suspected to be declining in line with the clearance and degradation of forest in the areas in which it occurs. The likely rate of decline, however, has not been estimated.
| Country/Territory | Presence | Origin | Resident | Breeding | Non-breeding | Passage |
|---|---|---|---|---|---|---|
| Tanzania | extant | native | yes |
| Country/Territory | IBA Name |
|---|---|
| Tanzania | Udzungwa National Park |
| Tanzania | Nguru Mountains |
| Tanzania | Nguu Mountains |
| Tanzania | Udzungwa Mountains |
| Tanzania | Uluguru Mountains |
| Tanzania | East Usambara Mountains |
| Tanzania | West Usambara Mountains |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Artificial/Terrestrial | Arable Land | suitable | resident |
| Artificial/Terrestrial | Plantations | suitable | resident |
| Artificial/Terrestrial | Rural Gardens | suitable | resident |
| Forest | Subtropical/Tropical Dry | suitable | resident |
| Forest | Subtropical/Tropical Moist Montane | suitable | resident |
| Savanna | Dry | suitable | resident |
| Altitude | 750 - 1500 m | Occasional altitudinal limits | (min) 200 m |
| Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Agriculture & aquaculture | Annual & perennial non-timber crops - Small-holder farming | Timing | Scope | Severity | Impact | ||||
| Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
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| Agriculture & aquaculture | Wood & pulp plantations - Small-holder plantations | Timing | Scope | Severity | Impact | ||||
| Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
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| Biological resource use | Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] | Timing | Scope | Severity | Impact | ||||
| Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
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Recommended citation
BirdLife International (2023) Species factsheet: Anthreptes rubritorques. Downloaded from
http://datazone.birdlife.org/species/factsheet/banded-sunbird-anthreptes-rubritorques on 04/10/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from
http://datazone.birdlife.org on 04/10/2023.
