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Mottled Petrel Pterodroma inexpectata

IUCN Red List Criteria

Near Threatened (criteria nearly met) A2e+3e+4e;B2ab(iv);D2 

IUCN Red List history

Year Category
2012 Near Threatened
2010 Near Threatened
2008 Near Threatened
2004 Near Threatened
2000 Lower Risk/Near Threatened
1994 Lower Risk/Least Concern
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) 108,000,000 medium
Number of locations -
Fragmentation -

Population & trend

  Estimate Data quality Derivation Year of estimate
No. of mature individuals medium Estimated 2004
Population trend Decreasing poor -
Number of subpopulations - - -
Largest subpopulation - - -
Generation length (yrs) 15.6 - - -
Population justification: Brooke (2004)
Trend justification: There are no data, the species is thought to be declining due to the depredations of introduced predators on the breeding grounds.

Country/Territory distribution

Country/Territory Occurrence status Presence Breeding Non-breeding Passage
American Samoa Unknown Extant      
Antarctica Native Extant   Yes  
Australia Native Extant   Yes  
Canada Unknown Extant      
Chile Unknown Extant      
Cook Islands Unknown Extant      
Ecuador Vagrant Extant      
Fiji Native Extant   Yes  
French Polynesia Unknown Extant      
Japan Vagrant Extant      
Kiribati Unknown Extant      
Marshall Islands Native Extant   Yes  
Mexico Unknown Extant      
Micronesia, Federated States of Unknown Extant      
Nauru Unknown Extant      
New Caledonia (to France) Unknown Extant      
New Zealand Native Extant Yes    
Niue (to New Zealand) Unknown Extant      
Norfolk Island (to Australia) Unknown Extant      
Pitcairn Islands (to UK) Unknown Extant      
Russia (Asian) Vagrant Extant      
Samoa Unknown Extant      
Solomon Islands Unknown Extant      
Tokelau (to New Zealand) Unknown Extant      
Tonga Unknown Extant      
Tuvalu Unknown Extant      
United States Minor Outlying Islands (to USA) Unknown Extant      
USA Native Extant   Yes  
Vanuatu Unknown Extant      
Wallis and Futuna Islands (to France) Unknown Extant      

Habitats & altitude

Habitat (level 1) Habitat (level 2) Importance Occurrence
Grassland Subantarctic major breeding
Marine Coastal/Supratidal Sea Cliffs and Rocky Offshore Islands major breeding
Marine Neritic Macroalgal/Kelp suitable breeding
Marine Neritic Macroalgal/Kelp suitable non-breeding
Marine Neritic Pelagic major breeding
Marine Neritic Pelagic major non-breeding
Marine Neritic Seagrass (Submerged) suitable breeding
Marine Neritic Seagrass (Submerged) suitable non-breeding
Marine Neritic Subtidal Loose Rock/pebble/gravel suitable breeding
Marine Neritic Subtidal Loose Rock/pebble/gravel suitable non-breeding
Marine Neritic Subtidal Rock and Rocky Reefs suitable breeding
Marine Neritic Subtidal Rock and Rocky Reefs suitable non-breeding
Marine Neritic Subtidal Sandy suitable breeding
Marine Neritic Subtidal Sandy suitable non-breeding
Marine Neritic Subtidal Sandy-Mud suitable breeding
Marine Neritic Subtidal Sandy-Mud suitable non-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
Altitude 0 - 350 m Occasional altitudinal limits  

Threats & impact

Threat (level 1) Threat (level 2) Impact and Stresses
Biological resource use Hunting & trapping terrestrial animals / Unintentional effects (species is not the target) Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Decline Low Impact: 5
Stresses
Species mortality
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases / Black Rat (Rattus rattus) Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Decline Low Impact: 5
Stresses
Reduced reproductive success
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases / Weka (Gallirallus australis) Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Decline Low Impact: 5
Stresses
Species mortality

Utilisation

Purpose Primary form used Life stage used Source Scale Level Timing
Food (human) Whole Adults and juveniles Wild Subsistence, National Non-trivial Recent

Recommended citation
BirdLife International (2014) Species factsheet: Pterodroma inexpectata. Downloaded from http://www.birdlife.org on 21/04/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 21/04/2014.

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 Near Threatened
Family Procellariidae (Petrels and shearwaters)
Species name author (Forster, 1844)
Population size mature individuals
Population trend Decreasing
Distribution size (breeding/resident) 108,000,000 km2
Country endemic? Yes
Links to further information
- Summary information on this species