IUCN Red List Criteria
| Critically Endangered |
D |
| Endangered |
D |
| Vulnerable |
D1 |
IUCN Red List history
| Year |
Category |
| 2012 |
Critically Endangered |
| 2009 |
Critically Endangered |
| 2008 |
Critically Endangered |
| 2004 |
Critically Endangered |
| 2000 |
Critically Endangered |
| 1996 |
Critically Endangered |
| 1994 |
Critically Endangered |
| 1988 |
Threatened |
Species attributes
| Migratory status |
full migrant |
Forest dependency |
Does not normally occur in forest |
| Land mass type |
continent
|
Average mass |
- |
Distribution
| |
Estimate |
Data quality |
| Extent of Occurrence breeding/resident (km2) |
1 |
medium |
| Number of locations |
|
- |
| Fragmentation |
|
- |
Population & trend
| |
Estimate |
Data quality |
Derivation |
Year of estimate |
| No. of mature individuals |
1-49 |
medium |
Estimated |
2000 |
| Population trend |
Unknown |
|
|
- |
| Number of subpopulations |
|
- |
- |
- |
| Largest subpopulation |
|
- |
- |
- |
| Generation length (yrs) |
10.1 |
- |
- |
- |
|
Population justification: Any remaining population is assumed to be tiny (numbering fewer than 50 individuals and mature individuals), as there have been no confirmed sightings since the early 1980s. |
Country/Territory distribution
| Country/Territory |
Occurrence status |
Extinct |
Breeding |
Non-breeding |
Passage |
| Argentina |
Native |
possibly |
|
Yes |
|
| Barbados |
Native |
Yes |
|
Yes |
Yes |
| Bermuda (to UK) |
Vagrant |
Yes |
|
|
|
| Bolivia |
Vagrant |
possibly |
|
|
|
| Brazil |
Native |
possibly |
|
Yes |
Yes |
| Canada |
Native |
possibly |
Yes |
|
|
| Chile |
Native |
possibly |
|
Yes |
|
| Falkland Islands (Malvinas) |
Vagrant |
Yes |
|
|
|
| Greenland (to Denmark) |
Vagrant |
Yes |
|
|
|
| Grenada |
Vagrant |
Yes |
|
|
|
| Guadeloupe (to France) |
Vagrant |
Yes |
|
|
|
| Guatemala |
Vagrant |
Yes |
|
|
|
| Iceland |
Vagrant |
Yes |
|
|
|
| Ireland |
Vagrant |
Yes |
|
|
|
| Mexico |
Native |
Yes |
|
|
Yes |
| Paraguay |
Native |
possibly |
|
Yes |
|
| Puerto Rico (to USA) |
Vagrant |
Yes |
|
|
|
| Russia (Asian) |
Vagrant |
Yes |
|
|
|
| St Vincent and the Grenadines |
Vagrant |
Yes |
|
|
|
| Trinidad and Tobago |
Vagrant |
possibly |
|
|
|
| United Kingdom |
Vagrant |
Yes |
|
|
|
| Uruguay |
Native |
Yes |
|
Yes |
|
| USA |
Native |
possibly |
|
|
Yes |
| Virgin Islands (to USA) |
Vagrant |
Yes |
|
|
|
Important Bird Areas where this species has triggered the IBA criteria
| Country/Territory |
IBA Name |
IBA link |
| Canada |
Anderson River Delta |
 |
Habitats & altitude
| Habitat (level 1) |
Habitat (level 2) |
Importance |
Occurrence |
| Grassland |
Subtropical/Tropical Dry |
major |
non-breeding |
| Grassland |
Tundra |
major |
breeding |
|
Altitude
|
0 - 350 m
|
Occasional altitudinal limits
|
|
Threats & impact
| Threat (level 1) |
Threat (level 2) |
Impact and Stresses |
| Agriculture & Aquaculture |
Annual & perennial non-timber crops / Agro-industry farming |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Unknown |
Unknown |
Unknown |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Agriculture & Aquaculture |
Livestock farming & ranching / Agro-industry grazing, ranching or farming |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Unknown |
Unknown |
Unknown |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Energy production & mining |
Mining & quarrying |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Unknown |
Unknown |
Unknown |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Biological resource use |
Hunting & trapping terrestrial animals / Intentional use (species is the target) |
Timing |
Scope |
Severity |
Impact |
| Past, Unlikely to Return |
Unknown |
Unknown |
Past Impact |
| Stresses |
|---|
| Species mortality |
|
| Climate change & severe weather |
Habitat shifting & alteration |
Timing |
Scope |
Severity |
Impact |
| Future |
Whole (>90%) |
Unknown |
Unknown |
| Stresses |
|---|
| Indirect ecosystem effects, Ecosystem degradation, Ecosystem conversion |
|
Utilisation
| Purpose |
Primary form used |
Life stage used |
Source |
Scale |
Level |
Timing |
| Food (human) |
Whole |
Adults and juveniles |
Wild |
Subsistence, National |
Non-trivial |
Historical |
| Pets |
Whole |
Adults and juveniles |
Wild |
International |
Trivial |
Recent |
| Sport |
Whole |
Adults and juveniles |
Wild |
Subsistence, National |
Non-trivial |
Historical |
Recommended citation
BirdLife International (2013) Species factsheet: Numenius borealis. Downloaded from
http://www.birdlife.org on 26/05/2013.
Recommended citation for factsheets for more than one species: BirdLife International (2013) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 26/05/2013.
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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