• 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.
Robertson, C. J. R.; Nunn, G. B. 1998. Towards a new taxonomy for albatrosses. In: Robertson, G.; Gales, R. (ed.), Albatross biology and conservation, pp. 13-19. Surrey Beatty & Sons, Chipping Norton, Australia.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	D2

Red List history

Year	Category	Criteria
2018	Vulnerable	D2
2016	Vulnerable	D2
2012	Vulnerable	D2
2010	Vulnerable	D2
2009	Critically Endangered	B2a+b(iii)
2008	Critically Endangered
2007	Critically Endangered
2005	Critically Endangered
2004	Critically Endangered
2003	Critically Endangered
2000	Critically Endangered
1994	Not Recognised
1988	Not Recognised

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)	59,100,000 km2	medium
Extent of Occurrence (non-breeding)	47,000,000 km2	medium
Area of Occupancy (breeding/resident)	1 km2	medium
Number of locations	1	-
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	11000 mature individuals	good	estimated	2007
Population trend	stable	medium	estimated	1973-2015
Generation length	21.7 years	-	-	-
Number of subpopulations	1	-	-	-
Percentage of mature individuals in largest subpopulation	100%	-	-	-

Population justification: Ground counts between 1999-2003 revealed c.5,300 occupied sites (Robertson et al. 2003), and further counts in 2007 and 2010 gave similar figures (5,247 and 5,245 occupied sites, respectively) (Robertson in litt. 2008, Fraser et al. 2011). This gives a total estimated global population of c.11,000 mature individuals, roughly equating to c.16,000 individuals in total.

Trend justification: Counts in recent years (1999, 2000 and 2001) and aerial photographs from 1973, 1974 and 1991 suggest that the population is stable, and is expected to remain stable in the near future (Croxall and Gales 1998, Robertson et al. 2003, C. J. R. Robertson in litt. 2008, ACAP 2010).

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

Country/Territory	IBA Name
New Zealand	Chatham (offshore)
New Zealand	Chatham Islands (nearshore)
New Zealand	The Pyramid Tarakoikoia

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Marine Coastal/Supratidal	Sea Cliffs and Rocky Offshore Islands	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	0 - 50 m	Occasional altitudinal limits

Threat (level 1)	Threat (level 2)	Impact and Stresses
Biological resource use	Fishing & harvesting aquatic resources - Unintentional effects: (large scale) [harvest]	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Unknown		Unknown
		Stresses Species mortality
Biological resource use	Fishing & harvesting aquatic resources - Unintentional effects: (subsistence/small scale) [harvest]	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Unknown		Unknown
		Stresses Species mortality
Biological resource use	Hunting & trapping terrestrial animals - Intentional use (species is the target)	Timing		Scope		Severity		Impact
		Past, Unlikely to Return		Minority (<50%)		Negligible declines		Past Impact
		Stresses Reduced reproductive success, Species mortality
Climate change & severe weather	Storms & flooding	Timing		Scope		Severity		Impact
		Past, Likely to Return		Whole (>90%)		Causing/Could cause fluctuations		Past Impact
		Stresses Ecosystem degradation, Reduced reproductive success

Purpose	Scale
Food - human	subsistence, national

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Recommended citation
BirdLife International (2024) Species factsheet: Chatham Albatross Thalassarche eremita. Downloaded from https://datazone.birdlife.org/species/factsheet/chatham-albatross-thalassarche-eremita on 22/11/2024.
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 22/11/2024.