EN
Polynesian Storm-petrel Nesofregetta fuliginosa



Taxonomy

Taxonomic source(s)
Brooke, M. de L. 2004. Albatrosses and Petrels Across the World. Oxford University Press, Oxford.
Brooke, M. de L. 2004. Albatrosses and Petrels Across the World. Oxford University Press, Oxford.
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
del Hoyo, J.; Collar, N. J.; Christie, D. A.; Elliott, A.; Fishpool, L. D. C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Barcelona, Spain and Cambridge UK: Lynx Edicions and BirdLife International.

IUCN Red list criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- C2a(i) A2ace+3ce+4ce; B1ab(i,ii,iv,v)+2ab(i,ii,iv,v); C2a(i); D1

Red List history
Year Category Criteria
2016 Endangered C2a(i)
2012 Endangered C2a(i)
2010 Endangered C2a(i)
2008 Vulnerable A2a,c,e; A3c,e; A4c,e; B2a+b(i,ii,iii,iv,v); C1
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 -
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 32,000,000 medium
Extent of Occurrence non-breeding (km2) 29,500,000 medium
Extent of Occurrence breeding/resident (km2) 500 medium
Number of locations 6-10 -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals 250-999 poor estimated 2010
Population trend Decreasing poor estimated -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) 30-49 - - -
Decline (10 years/3 generation past and future) 30-49 - - -
Number of subpopulations 2-100 - - -
Largest subpopulations - - -
Generation length (yrs) 15.2 - - -

Population justification: The current known population may be 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). However, there are attempts to breed on islets infested with Polynesian rat Rattus exulans, probably supplemented by recruits from adjacent rat-free islets (R. Pierce in litt. 2007).


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

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Chile Isla Sala y Gómez
Fiji Nabukelevu
French Polynesia Fatu Hiva
French Polynesia Fatu Huku
French Polynesia Fatu Huku Marine
French Polynesia Ilots rocheux de Rapa et Marotiri
French Polynesia Ilots rocheux de Ua Huka
French Polynesia Mangareva Marin
French Polynesia Manui, Kamaka, Makaroa
French Polynesia Marotiri Marine
French Polynesia Marquesas Marin
French Polynesia Rapa Marine
Kiribati Kiritimati (Christmas Island)
Kiribati Kiritimati (Christmas Island) Marine
Kiribati McKean Island
Kiribati McKean Island Marine
Kiribati Rawaki (Phoenix Island)
United States Minor Outlying Islands (to USA) Jarvis Island
United States Minor Outlying Islands (to USA) Jarvis Island Marine

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 Pelagic major non-breeding
Marine Neritic Pelagic major breeding
Marine Oceanic Epipelagic (0-200m) major breeding
Marine Oceanic Epipelagic (0-200m) major non-breeding
Altitude   Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Annual & perennial non-timber crops Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Hunting & trapping terrestrial animals Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines 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: 6
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: 6
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: 6
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: 6
Stresses
Reduced reproductive success

Utilisation
Purpose Primary form used Life stage used Source Scale Level Timing
Food (human) Whole Adults and juveniles Wild Non-trivial Recent

Recommended citation
BirdLife International (2017) Species factsheet: Nesofregetta fuliginosa. Downloaded from http://www.birdlife.org on 21/09/2017. Recommended citation for factsheets for more than one species: BirdLife International (2017) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 21/09/2017.