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White-throated Storm-petrel Nesofregetta fuliginosa

IUCN Red List Criteria

Critically Endangered  
Endangered C2a(i) 
Vulnerable A2ace+3ce+4ce;B2b(i,ii,iii,iv,v) 

IUCN Red List history

Year Category
2012 Endangered
2010 Endangered
2008 Vulnerable
2007 Vulnerable
2006 Vulnerable
2004 Vulnerable
2000 Vulnerable
1994 Lower Risk/Least Concern
1988 Lower Risk/Least Concern

Species attributes

Migratory status full migrant Forest dependency Does not normally occur in forest
Land mass type   Average mass -

Distribution

  Estimate Data quality
Extent of Occurrence breeding/resident (km2) 490 medium
Extent of Occurrence non-breeding (km2) 29,500,000 medium
Area of Occupancy breeding/resident (km2) 500 medium
Number of locations 6-10 -
Fragmentation -

Population & trend

  Estimate Data quality Derivation Year of estimate
No. of mature individuals 250-999 poor Estimated 2010
Population trend Decreasing poor -
Number of subpopulations 2-100 - - -
Largest subpopulation 51-250 - - -
Generation length (yrs) 15.2 - - -
Population justification: The current known population is as low as c.1,000-1,600 mature individuals, equivalent to c.1,500-2,400 individuals in total. However given that some surveys date back to the mid-1990s, and significant declines have been observed in previous strongholds, it is possible that the population may be lower than this. It is clear that data is lacking and a comprehensive survey needs to be conducted to assess the true population size.
Trend justification: Repeated estimates since the 1960s have indicated population declines of >50% on Kiritimati (=Christmas Island), a key breeding colony. Trend data from other colonies is lacking, but there may have been local extinctions, and the species appears not to coexist with rats and cats (Brooke 2004).

Country/Territory distribution

Country/Territory Occurrence status Presence Breeding Non-breeding Passage
American Samoa Unknown Extant Yes    
Chile Native Extant Yes    
Cook Islands Unknown Extant      
Fiji Native Extant Yes    
French Polynesia Native Extant Yes    
Kiribati Native Extant Yes    
New Caledonia (to France) Native Extinct Yes    
Niue (to New Zealand) Unknown Extant      
Pitcairn Islands (to UK) Unknown Extant      
Samoa Unknown Extant Yes    
Solomon Islands Unknown Extant      
Tokelau (to New Zealand) Unknown Extant      
Tonga Unknown Extant      
Tuvalu Unknown Extant      
United States Minor Outlying Islands (to USA) Unknown Extant      
Vanuatu Native Extinct Yes    
Wallis and Futuna Islands (to France) Unknown Extant      

Important Bird Areas where this species has triggered the IBA criteria

Country/Territory IBA Name IBA link
Chile Isla Sala y Gómez site factsheet
French Polynesia Fatu Hiva site factsheet

Habitats & altitude

Habitat (level 1) Habitat (level 2) Importance Occurrence
Marine Coastal/Supratidal Sea Cliffs and Rocky Offshore Islands major breeding
Marine Intertidal Rocky Shoreline major breeding
Marine Neritic Macroalgal/Kelp suitable breeding
Marine Neritic Macroalgal/Kelp suitable non-breeding
Marine Neritic Pelagic major breeding
Marine Neritic Pelagic major non-breeding
Marine Neritic Seagrass (Submerged) suitable breeding
Marine Neritic Seagrass (Submerged) suitable non-breeding
Marine Neritic Subtidal Loose Rock/pebble/gravel suitable breeding
Marine Neritic Subtidal Loose Rock/pebble/gravel suitable non-breeding
Marine Neritic Subtidal Rock and Rocky Reefs suitable breeding
Marine Neritic Subtidal Rock and Rocky Reefs suitable non-breeding
Marine Neritic Subtidal Sandy suitable breeding
Marine Neritic Subtidal Sandy suitable non-breeding
Marine Neritic Subtidal Sandy-Mud suitable breeding
Marine Neritic Subtidal Sandy-Mud suitable non-breeding
Marine Oceanic Epipelagic (0-200m) major breeding
Marine Oceanic Epipelagic (0-200m) major non-breeding
Marine Oceanic Mesopelagic (200-1000m) major breeding
Marine Oceanic Mesopelagic (200-1000m) major non-breeding
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 Minority (<50%) Slow, Significant Decline Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion
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
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases Timing Scope Severity Impact
Ongoing Minority (<50%) Rapid Declines Medium Impact:
Stresses
Reduced reproductive success
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases Timing Scope Severity Impact
Ongoing Minority (<50%) Rapid Declines Medium Impact:
Stresses
Species mortality
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases Timing Scope Severity Impact
Ongoing Minority (<50%) Rapid Declines Medium Impact:
Stresses
Reduced reproductive success
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases Timing Scope Severity Impact
Ongoing Minority (<50%) Rapid Declines Medium Impact:
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 (2014) Species factsheet: Nesofregetta fuliginosa. Downloaded from http://www.birdlife.org on 18/04/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 18/04/2014.

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 Endangered
Family Hydrobatidae (Storm-petrels)
Species name author (Gmelin, 1789)
Population size 250-999 mature individuals
Population trend Decreasing
Distribution size (breeding/resident) 490 km2
Country endemic? No
Links to further information
- Summary information on this species