IUCN Red List Criteria
| Critically Endangered |
|
| Endangered |
B1ab(i,ii,iii,v) |
| Vulnerable |
B1ab(i,ii,iii,v) |
IUCN Red List history
| Year |
Category |
| 2012 |
Endangered |
| 2008 |
Endangered |
| 2004 |
Endangered |
| 2000 |
Endangered |
| 1996 |
Vulnerable |
| 1994 |
Vulnerable |
| 1988 |
Threatened |
Species attributes
| Migratory status |
not a migrant |
Forest dependency |
Medium |
| Land mass type |
continent
|
Average mass |
- |
Distribution
| |
Estimate |
Data quality |
| Extent of Occurrence breeding/resident (km2) |
2,300 |
medium |
| Number of locations |
11 |
- |
| Fragmentation |
|
- |
Population & trend
| |
Estimate |
Data quality |
Derivation |
Year of estimate |
| No. of mature individuals |
6000-15000 |
good |
Estimated |
2000 |
| Population trend |
Decreasing |
medium |
|
- |
| Number of subpopulations |
2-100 |
- |
- |
- |
| Largest subpopulation |
1001-10000 |
- |
- |
- |
| Generation length (yrs) |
3.7 |
- |
- |
- |
|
Population justification: In Kenya, Arabuko-Sokoke Forest has been estimated to support c.13,000 individuals. There are no estimates for Tanzanian populations, but the sites where the bird occurs are small, and most are very heavily degraded (N. Burgess in litt. 2007). The total population is therefore placed in the range band for 10,000-19,999 individuals. This equates to 6,667-13,333 mature individuals, rounded here to 6,000-15,000 mature individuals. |
|
Trend justification: The population is suspected to be in decline owing to the clearance and degradation of the species's forest habitat, mainly through charcoal burning, agricultural encroachment, logging and pole cutting. The likely rate of decline has not been estimated. |
Country/Territory distribution
| Country/Territory |
Occurrence status |
Extinct |
Breeding |
Non-breeding |
Passage |
| Kenya |
Native |
No |
|
|
|
| Tanzania |
Native |
No |
|
|
|
Important Bird Areas where this species has triggered the IBA criteria
| Country/Territory |
IBA Name |
IBA link |
| Kenya |
Arabuko-Sokoke Forest |
 |
| Kenya |
Dakatcha Woodland |
 |
| Kenya |
Dzombo Hill Forest |
 |
| Kenya |
Gede Ruins National Monument |
 |
| Kenya |
Kaya Gandini |
 |
| Kenya |
Marenji Forest |
 |
| Kenya |
Shimba Hills |
 |
| Tanzania |
Bagamoyo District Coastal Forests |
 |
| Tanzania |
Kisarawe District Coastal Forests |
 |
| Tanzania |
Muheza District Coastal Forests |
 |
| Tanzania |
Pande Game Reserve and Dondwe Coastal Forests |
 |
Habitats & altitude
| Habitat (level 1) |
Habitat (level 2) |
Importance |
Occurrence |
| Forest |
Subtropical/Tropical Dry |
major |
resident |
| Forest |
Subtropical/Tropical Moist Lowland |
major |
resident |
|
Altitude
|
0 - 0 m
|
Occasional altitudinal limits
|
|
Threats & impact
| 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 Decline |
Medium Impact: |
| Stresses |
| Ecosystem degradation, Ecosystem conversion |
|
| Biological resource use |
Fishing & harvesting aquatic resources / Unintentional effects: (large scale) |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Majority (50-90%) |
Slow, Significant Decline |
Medium Impact: |
| Stresses |
| Ecosystem degradation, Ecosystem conversion |
|
| Biological resource use |
Fishing & harvesting aquatic resources / Unintentional effects: (subsistence/small scale) |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Slow, Significant Decline |
Low Impact: 5 |
| Stresses |
| Ecosystem degradation, Ecosystem conversion |
|
| Natural system modifications |
Other ecosystem modifications |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Majority (50-90%) |
Negligible declines |
Low Impact: 5 |
| Stresses |
| Ecosystem degradation, Ecosystem conversion |
|
| Invasive non-native/alien species/diseases |
Problematic native species/diseases |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Negligible declines |
Low Impact: 4 |
| Stresses |
| Ecosystem degradation, Ecosystem conversion |
|
Recommended citation
BirdLife International (2013) Species factsheet: Anthus sokokensis. Downloaded from
http://www.birdlife.org on 20/05/2013.
Recommended citation for factsheets for more than one species: BirdLife International (2013) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 20/05/2013.
This information is based upon, and updates, the information published in BirdLife International (2000)
Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004)
Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.
To provide new information to update this factsheet or to correct any errors, please email BirdLife
To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.