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closeIUCN Red List Criteria
| Critically Endangered | C2a(i,ii);D |
| Endangered | C2a(i,ii);D |
| Vulnerable | C2a(i,ii);D1+2 |
IUCN Red List history
| Year | Category |
|---|---|
| 2012 | Critically Endangered |
| 2010 | Critically Endangered |
| 2009 | Critically Endangered |
| 2008 | Critically Endangered |
| 2007 | Critically Endangered |
| 2006 | Not Evaluated |
| 2004 | Not Recognised |
| 2000 | Not Recognised |
| 1994 | Not Recognised |
| 1988 | Not Recognised |
Species attributes
| Migratory status | not a migrant | Forest dependency | High |
| Land mass type | Average mass | 13.3 g |
Population & trend
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| No. of mature individuals | 1-49 | poor | Estimated | 2007 |
| Population trend | Decreasing | poor | - | |
| Number of subpopulations | 1 | - | - | - |
| Largest subpopulation | 1-50 | - | - | - |
| Generation length (yrs) | 3.8 | - | - | - |
| Population justification: Although it has now been found at several localities since destruction of the type locality, the global population is nevertheless assumed to be tiny, with fewer than 50 individuals and mature individuals. | ||||
| Trend justification: Habitat at the type locality, Isla Carrizal, was destroyed and then flooded during the Guri Dam development, and this development destroyed other potentially suitable habitat, therefore the species's population is suspected to be declining, although the likely rate of decline has not been estimated. However, a significant proportion of its habitat is pristine, far from roads and unlikely to be under any threat (M. Lentino in litt. 2010). | ||||
Country/Territory distribution
| Country/Territory | Occurrence status | Extinct | Breeding | Non-breeding | Passage |
|---|---|---|---|---|---|
| Venezuela | Native | No |
Important Bird Areas where this species has triggered the IBA criteria
| Country/Territory | IBA Name | IBA link |
|---|---|---|
| Venezuela | Caruachi |  |
Habitats & altitude
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Forest | Subtropical/Tropical Dry | major | resident |
| Altitude | 95 - 1600 m | Occasional altitudinal limits |
Threats & impact
| Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Natural system modifications | Dams & water management/use / Dams (size unknown) | Timing | Scope | Severity | Impact | ||||
| Past, Likely to Return | Majority (50-90%) | Very Rapid Declines | Past Impact | ||||||
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Recommended citation
BirdLife International (2013) Species factsheet: Amaurospiza carrizalensis. Downloaded from
http://www.birdlife.org on 18/06/2013.
Recommended citation for factsheets for more than one species: BirdLife International (2013) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 18/06/2013.
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.
| Key facts | |
|---|---|
| Current IUCN Red List category | Critically Endangered |
| Family | Emberizidae (Buntings, American sparrows and allies) |
| Species name author | Lentino & Restall, 2003 |
| Population size | 1-49 mature individuals |
| Population trend | Decreasing |
| Distribution size (breeding/resident) | - |
| Country endemic? | Yes |
| Links to further information | |
| - Summary information on this species | |
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