CR
New Zealand Storm-petrel Fregetta maoriana



Taxonomy

Taxonomic note

Fregetta maoriana endemic to New Zealand (Brooke 2004), was not listed by Turbott (1990) as it was previously believed to be extinct. Fregetta maoriana (del Hoyo and Collar 2014) was previously placed in the genus Oceanites as O. maorianus (Oliver 1955) and genus Pealeornis as P. maoriana (Mathews 1932) by the New Zealand Checklist (2010).

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.

IUCN Red list criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
D D D1

Red List history
Year Category Criteria
2018 Critically Endangered D
2016 Critically Endangered D
2015 Critically Endangered D
2013 Critically Endangered D
2012 Critically Endangered D
2010 Critically Endangered D1
2009 Critically Endangered D1
2008 Critically Endangered
2005 Critically Endangered
2004 Critically Endangered
2000 Extinct
1994 Extinct
1988 Extinct
Species attributes

Migratory status unknown 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) 1,690,000 medium
Number of locations -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals 1-49 poor estimated 2008
Population trend Unknown not applicable -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations - - -
Largest subpopulations - - -
Generation length (yrs) 15.6 - - -

Population justification:

Seen at sea in small numbers, with ‘flocks’ of 10-20, 11 and 10-30 birds have been recorded during chumming sessions (Flood 2003, Gaskin and Baird 2005, Rayner et al. 2013). 

Trend justification: The population may be increasing, but the evidence is scarce and the current population trend remains largely unknown.


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Australia N Extant
New Zealand N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
New Zealand North Eastern North Island (offshore)
New Zealand Te Hauturu-o-Toi Little Barrier Island

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Temperate 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
Marine Oceanic Mesopelagic (200-1000m) major breeding
Marine Oceanic Mesopelagic (200-1000m) major non-breeding
Shrubland Temperate major breeding
Altitude 0 - 750 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases - Felis catus Timing Scope Severity Impact
Past, Unlikely to Return Unknown Unknown Past Impact
Stresses
None
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases - Rattus exulans Timing Scope Severity Impact
Past, Unlikely to Return Unknown Unknown Past Impact
Stresses
None

Recommended citation
BirdLife International (2020) Species factsheet: Fregetta maoriana. Downloaded from http://www.birdlife.org on 18/09/2020. Recommended citation for factsheets for more than one species: BirdLife International (2020) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 18/09/2020.