email a friend
printable version
VU
Bristle-thighed Curlew Numenius tahitiensis

IUCN Red List Criteria

Critically Endangered  
Endangered  
Vulnerable C2a(ii) 

IUCN Red List history

Year Category
2012 Vulnerable
2008 Vulnerable
2006 Vulnerable
2004 Vulnerable
2000 Vulnerable
1996 Vulnerable
1994 Vulnerable
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) 45,300 medium
Extent of Occurrence non-breeding (km2) 57,000 medium
Number of locations -
Fragmentation -

Population & trend

  Estimate Data quality Derivation Year of estimate
No. of mature individuals 7000 medium Estimated 2001
Population trend Decreasing poor -
Number of subpopulations 1 - - -
Largest subpopulation 7000 - - -
Generation length (yrs) 11.6 - - -
Population justification: Morrison et al. (2001) estimated the population to number 7,000 breeding mature individuals and 3,000 immatures, giving a total of 10,000 individuals.
Trend justification: This species's population is suspected to be decreasing at a moderate rate, owing mainly to the expected impacts of predation and hunting on its wintering grounds.

Country/Territory distribution

Country/Territory Occurrence status Presence Breeding Non-breeding Passage Resident
American Samoa Native Extant   Yes    
Chile Native Extant   Yes    
Cook Islands Native Extant   Yes    
Fiji Native Extant     Yes  
French Polynesia Native Extant   Yes    
Guam (to USA) Native Extant   Yes    
Indonesia Vagrant Extant   Yes    
Japan Vagrant Extant   Yes    
Kiribati Native Extant   Yes    
Marshall Islands Native Extant   Yes    
Micronesia, Federated States of Native Extant   Yes    
Nauru Native Extant   Yes    
New Zealand Native Extant   Yes    
Niue (to New Zealand) Native Extant   Yes    
Northern Mariana Islands (to USA) Native Extant   Yes    
Papua New Guinea Vagrant Extant        
Philippines Vagrant Extant   Yes    
Pitcairn Islands (to UK) Native Extant   Yes    
Samoa Native Extant   Yes    
Solomon Islands Native Extant   Yes    
Tokelau (to New Zealand) Native Extant   Yes    
Tonga Native Extant   Yes    
Tuvalu Native Extant   Yes    
United States Minor Outlying Islands (to USA) Native Extant   Yes    
USA Native Extant Yes      
Wallis and Futuna Islands (to France) Native Extant   Yes    

Important Bird Areas where this species has triggered the IBA criteria

Country/Territory IBA Name IBA link
Cook Islands Atiu site factsheet
Cook Islands Ma'uke Island site factsheet
Cook Islands Mangaia site factsheet
Cook Islands Miti'aro Island site factsheet
Cook Islands Suwarrow Atoll National Park site factsheet
Cook Islands Takutea Wildlife Sanctuary site factsheet
French Polynesia Anuanuraro site factsheet
French Polynesia Apataki, Arutua et Kaukura site factsheet
French Polynesia Fangataufa site factsheet
French Polynesia Maiao site factsheet
French Polynesia Manuae, Motu One et Maupihaa site factsheet
French Polynesia Mehetia site factsheet
French Polynesia Nord-ouest de Nuku Hiva site factsheet
French Polynesia Pentes du mont Hiro de Raivavae site factsheet
French Polynesia Reitoru site factsheet
French Polynesia Tahanea site factsheet
French Polynesia Tahuata site factsheet
French Polynesia Tekokota site factsheet
French Polynesia Tenararo site factsheet
French Polynesia Tikehau site factsheet
French Polynesia Tupai site factsheet
Kiribati Millenium (Caroline) Island site factsheet
Pitcairn Islands (to UK) Henderson Island site factsheet
Pitcairn Islands (to UK) Oeno Island site factsheet
Tonga Maninita, Taula, Lualoli site factsheet
United States Minor Outlying Islands (to USA) Howland Island site factsheet
United States Minor Outlying Islands (to USA) Jarvis Island site factsheet
United States Minor Outlying Islands (to USA) Palmyra Atoll site factsheet
USA Andreafsky Wilderness site factsheet
USA Central Seward Peninsula site factsheet
USA James Campbell National Wildlife Refuge site factsheet
USA Northwestern Hawaiian Islands site factsheet

Habitats & altitude

Habitat (level 1) Habitat (level 2) Importance Occurrence
Grassland Tundra major breeding
Marine Coastal/Supratidal Coastal Brackish/Saline Lagoons/Marine Lakes major non-breeding
Marine Intertidal Mud Flats and Salt Flats suitable non-breeding
Marine Intertidal Sandy Shoreline and/or Beaches, Sand Bars, Spits, Etc suitable non-breeding
Altitude 0 - 350 m Occasional altitudinal limits  

Threats & impact

Threat (level 1) Threat (level 2) Impact and Stresses
Biological resource use Hunting & trapping terrestrial animals / Intentional use (species is the target) Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Decline Low Impact: 5
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
Energy production & mining Mining & quarrying Timing Scope Severity Impact
Future Minority (<50%) Slow, Significant Decline Low Impact: 3
Stresses
Ecosystem degradation, Ecosystem conversion
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases / Domestic Cat (Felis catus) Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Decline Medium Impact: 6
Stresses
Species mortality
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases / Domestic Dog (Canis familiaris) Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Decline Medium Impact: 6
Stresses
Species mortality
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases / Domestic Pig (Sus domesticus) Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Decline Medium Impact: 6
Stresses
Species mortality
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases / Red Fox (Vulpes vulpes) Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Decline Medium Impact: 6
Stresses
Species mortality
Pollution Industrial & military effluents / Type Unknown/Unrecorded Timing Scope Severity Impact
Ongoing Minority (<50%) Unknown Unknown
Stresses
Species mortality

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 (2014) Species factsheet: Numenius tahitiensis. Downloaded from http://www.birdlife.org on 22/08/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 22/08/2014.

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 Vulnerable
Family Scolopacidae (Sandpipers, Snipes, Phalaropes)
Species name author (Gmelin, 1789)
Population size 7000 mature individuals
Population trend Decreasing
Distribution size (breeding/resident) 45,300 km2
Country endemic? Yes
Links to further information
- Summary information on this species