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CR(PE)
Olomao Myadestes lanaiensis

IUCN Red List Criteria

Critically Endangered D 
Endangered D 
Vulnerable D1+2 

IUCN Red List history

Year Category
2012 Critically Endangered
2009 Critically Endangered
2008 Critically Endangered
2004 Critically Endangered
2000 Critically Endangered
1996 Critically Endangered
1994 Critically Endangered
1988 Threatened

Species attributes

Migratory status not a migrant Forest dependency High
Land mass type   Average mass -

Distribution

  Estimate Data quality
Extent of Occurrence breeding/resident (km2) 19 medium
Number of locations 1 -
Fragmentation -

Population & trend

  Estimate Data quality Derivation Year of estimate
No. of mature individuals 1-49 poor Estimated 1993
Population trend Unknown -
Number of subpopulations 1 - - -
Largest subpopulation 1-49 - - -
Generation length (yrs) 4.5 - - -
Population justification: Any remaining population is assumed to be tiny (numbering fewer than 50 individuals and mature individuals), with no records (confirmed or otherwise) since the late 1980s
Trend justification: The population trend is unknown as the last well-documented sighting of this species took place in 1980.

Country/Territory distribution

Country/Territory Occurrence status Extinct Breeding Non-breeding Passage
USA Native possibly Yes    

Important Bird Areas where this species has triggered the IBA criteria

Country/Territory IBA Name IBA link
USA Molokai Forests site factsheet

Habitats & altitude

Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Lowland major resident
Forest Subtropical/Tropical Moist Montane major resident
Altitude 1000 - 0 m Occasional altitudinal limits  

Threats & impact

Threat (level 1) Threat (level 2) Impact and Stresses
Invasive non-native/alien species/diseases Invasive non-native/alien species/diseases / Avian Malaria (Plasmodium relictum) Timing Scope Severity Impact
Ongoing Whole (>90%) Negligible declines Medium Impact:
Stresses
Species mortality
Invasive non-native/alien species/diseases Invasive non-native/alien species/diseases / Chital (Axis axis) Timing Scope Severity Impact
Past, Unlikely to Return Whole (>90%) Very Rapid Declines Past Impact
Stresses
Ecosystem degradation, Ecosystem conversion
Invasive non-native/alien species/diseases Invasive non-native/alien species/diseases / Domestic Pig (Sus domesticus) Timing Scope Severity Impact
Past, Unlikely to Return Whole (>90%) Very Rapid Declines Past Impact
Stresses
Ecosystem degradation, Ecosystem conversion
Climate change & severe weather Habitat shifting & alteration Timing Scope Severity Impact
Future Whole (>90%) Unknown Unknown
Stresses
Indirect ecosystem effects, Ecosystem degradation, Ecosystem conversion

Recommended citation
BirdLife International (2013) Species factsheet: Myadestes lanaiensis. Downloaded from http://www.birdlife.org on 19/06/2013. Recommended citation for factsheets for more than one species: BirdLife International (2013) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 19/06/2013.

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 Critically Endangered - Possibly Extinct
Family Turdidae (Thrushes)
Species name author (Wilson, 1891)
Population size 1-49 mature individuals
Population trend Unknown
Distribution size (breeding/resident) 19 km2
Country endemic? Yes
Links to further information
- Summary information on this species