VU
Matsudaira's Storm-petrel Hydrobates matsudairae



Taxonomy

Taxonomic note
Hydrobates matsudairae (del Hoyo and Collar 2014) was previously placed in the genus Oceanodroma.

Taxonomic source(s)
Brooke, M. de L. 2004. Albatrosses and Petrels Across the World. Oxford University Press, Oxford.
Christidis, L. and Boles, W.E. 2008. Systematics and Taxonomy of Australian Birds. CSIRO Publishing, Collingwood, Australia.
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
- - D2

Red List history
Year Category Criteria
2018 Vulnerable D2
2016 Vulnerable D2
2014 Vulnerable D2
2012 Data Deficient
2010 Data Deficient
2008 Data Deficient
2004 Data Deficient
2000 Data Deficient
1996 Data Deficient
1994 Data Deficient
1988 Lower Risk/Least Concern
Species attributes

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

Estimate Data quality
Extent of Occurrence (breeding/resident) 270 km2 medium
Extent of Occurrence (non-breeding) 42,800,000 km2 medium
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size unknown medium estimated 2004
Population trend unknown - - -
Generation length 14.6 years - - -

Population justification: It is described as not especially rare in the Indian Ocean, suggesting that the global population numbers a minimum of 20,000 individuals (Brooke 2004).

Trend justification: The population trend is difficult to determine because of uncertainty over the main threats to the species.


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Australia extant vagrant
British Indian Ocean Territory extant uncertain
Christmas Island (to Australia) extant vagrant
Cocos (Keeling) Islands (to Australia) extant uncertain
Guam (to USA) extant native yes
Indonesia extant native
Japan extant native yes
Kenya extant native yes
Maldives extant uncertain
Micronesia, Federated States of extant uncertain
Northern Mariana Islands (to USA) extant native yes
Palau extant native yes
Papua New Guinea extant uncertain
Philippines extant uncertain
Seychelles extant native yes
Somalia extant native yes
Tanzania extant uncertain
Timor-Leste extant uncertain

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Japan Kazan-retto islands
Japan Kazan-Retto Islands - Marine

Habitats & altitude
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   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 - Rattus rattus Timing Scope Severity Impact
Ongoing Minority (<50%) Very Rapid Declines Medium Impact: 7
Stresses
Reduced reproductive success, Species mortality

Recommended citation
BirdLife International (2024) Species factsheet: Matsudaira's Storm-petrel Hydrobates matsudairae. Downloaded from https://datazone.birdlife.org/species/factsheet/matsudairas-storm-petrel-hydrobates-matsudairae 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.