• 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); D1

Red List history

Year	Category	Criteria
2018	Vulnerable	C2a(i);D1
2016	Vulnerable	C2a(i);D1
2012	Vulnerable	C2a(i);D1
2011	Vulnerable	C2a(i)
2010	Near Threatened	C2a(i)
2008	Near Threatened	C2a(i)
2006	Near Threatened
2004	Least Concern
2000	Lower Risk/Least Concern
1994	Lower Risk/Least Concern
1988	Lower Risk/Least Concern

Migratory status	not a migrant	Forest dependency	high
Land-mass type		Average mass	136 g

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	35,100,000 km2	medium
Area of Occupancy (breeding/resident)	140 km2	medium
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	670-6700 mature individuals	poor	estimated	2005
Population trend	decreasing	poor	inferred	1966-2011
Rate of change over the past 10 years/3 generations (longer of the two periods)	1-19%	-	-	-
Rate of change over the future 10 years/3 generations (longer of the two periods)	1-19%	-	-	-
Rate of change over the past & future 10 years/3 generations (longer of the two periods)	1-19%	-	-	-
Generation length	15.6 years	-	-	-
Number of subpopulations	2-100	-	-	-

Population justification: Unpublished data from the Fiji IBA project (G. Dutson in litt. 2005) suggest that the global population numbers 1,000-10,000 individuals, roughly equivalent to 670-6,700 mature individuals.

Trend justification: There are insufficient data available to quantify the species's population trend, but it is considered to be undergoing a slow to moderate decline owing to predation by introduced mammals.

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
American Samoa	extant	uncertain		yes
Chile	extant	uncertain
Cook Islands	extant	uncertain		yes
Ecuador	extant	uncertain
Fiji	extant	native		yes
French Polynesia	extant	uncertain
Kiribati	extant	uncertain
Nauru	extant	uncertain
New Caledonia (to France)	extant	uncertain
New Zealand	extant	uncertain
Niue (to New Zealand)	extant	uncertain
Norfolk Island (to Australia)	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	extant	native		yes
Wallis and Futuna Islands (to France)	extant	uncertain

Country/Territory	IBA Name
Fiji	East Kadavu
Fiji	Gau Highlands
Fiji	Gau Marine
Fiji	Nabukelevu
Fiji	West Kadavu Marine
Vanuatu	Mount Tukusmera
Vanuatu	Vanua Lava, Mount Sereama

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Lowland	major	breeding
Marine Neritic	Pelagic	major	resident
Marine Oceanic	Epipelagic (0-200m)	major	resident
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
		Ongoing		Minority (<50%)		Negligible declines		Low Impact: 4
		Stresses Species mortality
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Canis familiaris	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 - Capra hircus	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Unknown		Unknown
		Stresses Ecosystem degradation
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 - Herpestes auropunctatus	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Rapid Declines		Medium Impact: 7
		Stresses Reduced reproductive success
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Named species	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Rapid Declines		Medium Impact: 7
		Stresses Species mortality
Invasive and other problematic species, genes & diseases	Invasive non-native/alien species/diseases - Sus domesticus	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Rapid Declines		Medium Impact: 6
		Stresses Reduced reproductive success, Species mortality

Purpose	Scale
Other household goods	subsistence, national

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Recommended citation
BirdLife International (2024) Species factsheet: Collared Petrel Pterodroma brevipes. Downloaded from https://datazone.birdlife.org/species/factsheet/collared-petrel-pterodroma-brevipes on 23/11/2024.
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 23/11/2024.