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Monteiro's Storm-petrel  Hydrobates monteiroi

IUCN Red List Criteria

Critically Endangered  
Endangered D1+2 
Vulnerable  

IUCN Red List history

Year Category
2013 Vulnerable
2012 Vulnerable
2010 Vulnerable

Species attributes

Migratory status not a migrant Forest dependency Does not normally occur in forest
Land mass type   Average mass -

Distribution

  Estimate Data quality
Extent of Occurrence breeding/resident (km2) 737,000
Area of Occupancy breeding/resident (km2) 1 medium
Number of locations 2 -
Fragmentation -

Population & trend

  Estimate Data quality Derivation Year of estimate
No. of mature individuals 250-999 medium Estimated 1999
Population trend Stable poor -
Number of subpopulations - - -
Largest subpopulation - - -
Generation length (yrs) 16.5 - - -
Population justification: The population was estimated at 300 pairs in 1999 (Bolton et al. 2008). Although this estimate is now a decade old, the population is not thought to have declined since, and may have actually increased, particularly in response to the installation of artificial nest boxes on Praia islet. Thus, the population is best placed in the band 250-999 mature individuals. This equates to 375-1,499 individuals in total, rounded here to 350-1,500 individuals.
Trend justification: Although there is no trend data, the population is suspected to be stable in the absence of any known threats. The population may have even increased since the last known population estimate in 1999 owing to an increase in annual productivity following the installation of nest boxes (Bolton et al. 2008, Bried et al. 2009).

Country/Territory distribution

Country/Territory Occurrence status Presence Breeding Non-breeding Passage Resident
Portugal Native Extant       Yes

Important Bird Areas where this species has triggered the IBA criteria

Country/Territory IBA Name IBA link
Portugal Graciosa 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 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
Rocky areas (eg. inland cliffs, mountain peaks) major breeding
Altitude 0 - 0 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 / Unspecified rats (Rattus spp.) Timing Scope Severity Impact
Ongoing Majority (50-90%) Rapid Declines Medium Impact: 7
Stresses
Reduced reproductive success, Species mortality
Invasive and other problematic species, genes & diseases Problematic native species/diseases Timing Scope Severity Impact
Ongoing Majority (50-90%) Negligible declines Low Impact: 5
Stresses
Species mortality
Residential & commercial development Tourism & recreation areas Timing Scope Severity Impact
Future Majority (50-90%) Unknown Unknown
Stresses
Reduced reproductive success, Species mortality
Transportation & service corridors Shipping lanes Timing Scope Severity Impact
Future Majority (50-90%) Unknown Unknown
Stresses
Ecosystem degradation, Reduced reproductive success, Species mortality

Recommended citation
BirdLife International (2014) Species factsheet: Hydrobates monteiroi. Downloaded from http://www.birdlife.org on 20/08/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 20/08/2014.

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 Bolton et al., 2008
Population size 250-999 mature individuals
Population trend Stable
Distribution size (breeding/resident) 737,000 km2
Country endemic? Yes
Links to further information
- Summary information on this species