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Matsudaira's Storm-petrel Hydrobates matsudairae

IUCN Red List Criteria

Critically Endangered  
Endangered  
Vulnerable D2 

IUCN Red List history

Year Category
2014 Vulnerable
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 -

Distribution

  Estimate Data quality
Extent of Occurrence breeding/resident (km2) 8 medium
Extent of Occurrence non-breeding (km2) 22,400,000 medium
Number of locations -
Fragmentation -

Population & trend

  Estimate Data quality Derivation Year of estimate
No. of mature individuals medium Estimated 0
Population trend Unknown -
Number of subpopulations - - -
Largest subpopulation - - -
Generation length (yrs) 14.6 - - -
Population justification: It is described as not especially rare in the Indian Ocean, perhaps suggesting that the global population numbers a minimum of 20,000 individuals (Brooke 2004), thus the number of mature individuals is preliminarily estimated at c.20,000.
Trend justification: The population trend is difficult to determine because of uncertainty over the main threats to the species.

Country/Territory distribution

Country/Territory Occurrence status Presence Breeding Non-breeding Passage Resident
Australia Vagrant Extant        
British Indian Ocean Territory Unknown Extant        
Christmas Island (to Australia) Vagrant Extant        
Cocos (Keeling) Islands (to Australia) Unknown Extant        
Guam (to USA) Native Extant   Yes    
Indonesia Native Extant        
Japan Native Extant Yes      
Kenya Native Extant   Yes    
Maldives Unknown Extant        
Micronesia, Federated States of Unknown Extant        
Northern Mariana Islands (to USA) Native Extant   Yes    
Palau Native Extant   Yes    
Papua New Guinea Unknown Extant        
Philippines Unknown Extant        
Seychelles Native Extant   Yes    
Somalia Native Extant   Yes    
Tanzania Unknown Extant        
Timor-Leste Unknown Extant        

Important Bird Areas where this species has triggered the IBA criteria

Country/Territory IBA Name IBA link
Japan Iwo islands site factsheet

Habitats & altitude

Habitat (level 1) Habitat (level 2) Importance Occurrence
Marine Coastal/Supratidal Sea Cliffs and Rocky Offshore Islands major breeding
Marine Neritic Macroalgal/Kelp suitable non-breeding
Marine Neritic Macroalgal/Kelp suitable breeding
Marine Neritic Pelagic major breeding
Marine Neritic Pelagic major non-breeding
Marine Neritic Seagrass (Submerged) suitable non-breeding
Marine Neritic Seagrass (Submerged) suitable breeding
Marine Neritic Subtidal Loose Rock/pebble/gravel suitable non-breeding
Marine Neritic Subtidal Loose Rock/pebble/gravel suitable breeding
Marine Neritic Subtidal Rock and Rocky Reefs suitable non-breeding
Marine Neritic Subtidal Rock and Rocky Reefs suitable breeding
Marine Neritic Subtidal Sandy suitable non-breeding
Marine Neritic Subtidal Sandy suitable breeding
Marine Neritic Subtidal Sandy-Mud suitable breeding
Marine Neritic Subtidal Sandy-Mud suitable non-breeding
Marine Oceanic Epipelagic (0-200m) major non-breeding
Marine Oceanic Epipelagic (0-200m) major breeding
Marine Oceanic Mesopelagic (200-1000m) major breeding
Marine Oceanic Mesopelagic (200-1000m) major non-breeding
Altitude 0 - 0 m Occasional altitudinal limits  

Threats & impact

Threat (level 1) Threat (level 2) Impact and Stresses
Human intrusions & disturbance War, civil unrest & military exercises Timing Scope Severity Impact
Ongoing Majority (50-90%) Unknown Unknown
Stresses
Species disturbance
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases / Unspecified species Timing Scope Severity Impact
Past, Likely to Return Majority (50-90%) Rapid Declines Past Impact
Stresses
Reduced reproductive success, Species mortality

Recommended citation
BirdLife International (2014) Species factsheet: Hydrobates matsudairae. Downloaded from http://www.birdlife.org on 23/10/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 23/10/2014.

This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.

To provide new information to update this factsheet or to correct any errors, please email BirdLife

To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.

Key facts
Current IUCN Red List category Vulnerable
Family Hydrobatidae (Northern Storm-petrels)
Species name author (Kuroda, 1922)
Population size mature individuals
Population trend Unknown
Distribution size (breeding/resident) 8 km2
Country endemic? Yes
Links to further information
- Summary information on this species