IUCN Red List Criteria
| Critically Endangered |
|
| Endangered |
|
| Vulnerable |
A2cd;B1ab(i,ii,iii,v);C2a(i) |
IUCN Red List history
| Year |
Category |
| 2012 |
Vulnerable |
| 2008 |
Vulnerable |
| 2004 |
Vulnerable |
| 2000 |
Vulnerable |
| 1996 |
Vulnerable |
| 1994 |
Vulnerable |
| 1988 |
Near Threatened |
Species attributes
| Migratory status |
not a migrant |
Forest dependency |
High |
| Land mass type |
|
Average mass |
- |
Distribution
| |
Estimate |
Data quality |
| Extent of Occurrence breeding/resident (km2) |
8,300 |
medium |
| Number of locations |
11-100 |
- |
| Fragmentation |
|
- |
Population & trend
| |
Estimate |
Data quality |
Derivation |
Year of estimate |
| No. of mature individuals |
1500-7000 |
poor |
Estimated |
2000 |
| Population trend |
Decreasing |
poor |
|
- |
| Number of subpopulations |
2-100 |
- |
- |
- |
| Largest subpopulation |
251-1000 |
- |
- |
- |
| Generation length (yrs) |
7.3 |
- |
- |
- |
|
Population justification: The population is estimated to number 2,500-9,999 individuals based on an assessment of known records, descriptions of abundance and range size. This is consistent with recorded population density estimates for congeners or close relatives with a similar body size, and the fact that only a proportion of the estimated Extent of Occurrence is likely to be occupied. This estimate is equivalent to 1,667-6,666 mature individuals, rounded here to 1,500-7,000 mature individuals. |
|
Trend justification: There are no new data on population trends; however, the species is still suspected to be declining rapidly, and may do so more rapidly in the future owing to the westward spread of the Pearly-eyed Thrasher. |
Country/Territory distribution
| Country/Territory |
Occurrence status |
Extinct |
Breeding |
Non-breeding |
Passage |
| Dominican Republic |
Native |
No |
|
|
|
| Haiti |
Native |
No |
|
|
|
| Puerto Rico (to USA) |
Native |
Yes |
|
|
|
| United States Minor Outlying Islands (to USA) |
Native |
possibly |
|
|
|
Important Bird Areas where this species has triggered the IBA criteria
| Country/Territory |
IBA Name |
IBA link |
| Dominican Republic |
Armando Bermudez National Park |
 |
| Dominican Republic |
Del Este National Park |
|
| Dominican Republic |
Eastern Bahoruco |
|
| Dominican Republic |
Enriquillo Lake |
|
| Dominican Republic |
Haitises |
|
| Dominican Republic |
Jaragua National Park |
|
| Dominican Republic |
Nalga de Maco-Río Limpio |
|
| Dominican Republic |
Sierra de Bahoruco |
|
| Dominican Republic |
Sierra de Neyba |
|
| Haiti |
Trou Caïman |
|
Habitats & altitude
| Habitat (level 1) |
Habitat (level 2) |
Importance |
Occurrence |
| Forest |
Subtropical/Tropical Moist Lowland |
major |
resident |
| Forest |
Subtropical/Tropical Moist Montane |
major |
resident |
|
Altitude
|
0 - 1500 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: (subsistence/small scale) |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Majority (50-90%) |
Slow, Significant Decline |
Medium Impact: |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Biological resource use |
Hunting & trapping terrestrial animals / Intentional use (species is the target) |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Majority (50-90%) |
Slow, Significant Decline |
Medium Impact: |
| Stresses |
|---|
| Species mortality |
|
| Invasive non-native/alien species/diseases |
Problematic native species/diseases |
Timing |
Scope |
Severity |
Impact |
| Future |
Majority (50-90%) |
Slow, Significant Decline |
Low Impact: 4 |
| Stresses |
|---|
| Reduced reproductive success |
|
Utilisation
| Purpose |
Primary form used |
Life stage used |
Source |
Scale |
Level |
Timing |
| Food (human) |
Whole |
Adults and juveniles |
Wild |
Subsistence, National |
Non-trivial |
Recent |
Recommended citation
BirdLife International (2013) Species factsheet: Corvus leucognaphalus. Downloaded from
http://www.birdlife.org on 25/05/2013.
Recommended citation for factsheets for more than one species: BirdLife International (2013) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 25/05/2013.
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.
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