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

Taxonomic note
Puffinus lherminieri (incorporating baroli), P. bannermani, P. persicus, P. subalaris and P. bailloni (del Hoyo and Collar 2014) were previously lumped as P. lherminieri and baroli was subsumed under P. assimilis, following Brooke (2004), before which P. bannermani and P. persicus where split following Sibley and Monroe (1990, 1993).

Taxonomic source(s)
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
-	B2ab(v)	B2ab(v)

Red List history

Year	Category	Criteria
2018	Endangered	B2ab(v)
2016	Endangered	B2ab(v)
2014	Endangered	B2ab(v)
2012	Not Recognised
2008	Not Recognised
2006	Not Recognised
2004	Least Concern
2000	Lower Risk/Least Concern
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)	1,380,000 km2
Area of Occupancy (breeding/resident)	95 km2
Number of locations	2-5	-
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	unknown	-	-	-
Population trend	decreasing	-	inferred	-
Generation length	22.3 years	-	-	-

Population justification: This species's population size has not been estimated (Brooke 2004).

Trend justification: The population is considered to be in decline owing to predation by introduced mammals and other potential threats, such as collisions with artificial light sources.

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Japan	extant	native	yes

Country/Territory	IBA Name

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Marine Coastal/Supratidal	Sea Cliffs and Rocky Offshore Islands	major	breeding
Marine Neritic	Pelagic	major	resident
Altitude		Occasional altitudinal limits

Threat (level 1)	Threat (level 2)	Impact and Stresses
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
Pollution	Excess energy - Light pollution	Timing		Scope		Severity		Impact
		Ongoing		Unknown		Unknown		Unknown
		Stresses Species mortality

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Recommended citation
BirdLife International (2024) Species factsheet: Bannerman's Shearwater Puffinus bannermani. Downloaded from https://datazone.birdlife.org/species/factsheet/bannermans-shearwater-puffinus-bannermani on 25/11/2024.
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 25/11/2024.