• Summary
• Text account
• Data table and detailed info
• Distribution map
• Reference and further resources

Taxonomic source(s)
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. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.

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
2018	Endangered	C2a(i)
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

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

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	32,000,000 km2	medium
Extent of Occurrence (non-breeding)	29,500,000 km2	medium
Area of Occupancy (breeding/resident)	500 km2	medium
Number of locations	6-10	-
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	250-999 mature individuals	poor	estimated	2010
Population trend	decreasing	poor	estimated	1962-2010
Rate of change over the past 10 years/3 generations (longer of the two periods)	30-49%	-	-	-
Rate of change over the future 10 years/3 generations (longer of the two periods)	30-49%	-	-	-
Rate of change over the past & future 10 years/3 generations (longer of the two periods)	30-49%	-	-	-
Generation length	15.2 years	-	-	-
Number of subpopulations	2-100	-	-	-

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 size may be lower than this. 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, a key breeding colony. Trend data from other colonies is lacking, but there may have been local extinctions. 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	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Chile	extant	native		yes
Fiji	extant	native		yes
French Polynesia	extant	native		yes
Kiribati	extant	native	yes
New Caledonia (to France)	extant	native		yes
Niue (to New Zealand)	extant	uncertain
Pitcairn Islands (to UK)	extant	uncertain
Samoa	extant	uncertain		yes
Solomon Islands	extant	uncertain
Tokelau (to New Zealand)	extant	uncertain
Tonga	extant	uncertain
Tuvalu	extant	uncertain
United States Minor Outlying Islands (to USA)	extant	uncertain
Vanuatu	extinct	native		yes
Wallis and Futuna Islands (to France)	extant	uncertain

Country/Territory	IBA Name
Chile	Isla Sala y Gómez
French Polynesia	Fatu Huku
French Polynesia	Fatu Huku Marine
French Polynesia	Ilots rocheux de Rapa et Marotiri
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

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

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
		Past, Unlikely to Return		Minority (<50%)		Slow, Significant Declines		Past Impact
		Stresses Species mortality
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Felis catus	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 - Rattus exulans	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 - Rattus rattus	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Rapid Declines		Medium Impact: 6
		Stresses Reduced reproductive success

Purpose	Scale
Food - human	subsistence, national

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Recommended citation
BirdLife International (2024) Species factsheet: Polynesian Storm-petrel Nesofregetta fuliginosa. Downloaded from https://datazone.birdlife.org/species/factsheet/polynesian-storm-petrel-nesofregetta-fuliginosa on 18/12/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org/species/search on 18/12/2024.