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CR(PE)
Poo-uli Melamprosops phaeosoma

IUCN Red List Criteria

Critically Endangered A2ace;C2a(i,ii);D 
Endangered A2ace;C2a(i,ii);D 
Vulnerable A2ace;C2a(i,ii);D1+2 

IUCN Red List history

Year Category
2012 Critically Endangered
2009 Critically Endangered
2008 Critically Endangered
2007 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) 3 medium
Number of locations -
Fragmentation -

Population & trend

  Estimate Data quality Derivation Year of estimate
No. of mature individuals 1-49 good Estimated 2007
Population trend Decreasing good -
Number of subpopulations 1 - - -
Largest subpopulation 1-49 - - -
Generation length (yrs) 5 - - -
Population justification: One of the last three known individuals died in captivity in 2004. The other two have not been seen since 2003 and 2004 respectively. No new individuals have been found since 1998 (K. Swinnerton in litt. 2006). If any birds remain, the population is assumed to be tiny (fewer than 50 individuals and mature individuals).
Trend justification: Since its discovery in 1973 when there were an estimated 100-200 individuals, the population declined to just three known individuals in 1998, and all these may now have died. Thus the population is estimated to have experienced an extremely rapid decline over the last three generations or 15 years.

Country/Territory distribution

Country/Territory Occurrence status Presence Breeding Non-breeding Passage Resident
USA Native Possibly Extinct       Yes

Important Bird Areas where this species has triggered the IBA criteria

Country/Territory IBA Name IBA link
USA Haleakala site factsheet

Habitats & altitude

Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Dry major resident
Forest Subtropical/Tropical Moist Montane major resident
Altitude 1400 - 2100 m Occasional altitudinal limits  

Threats & impact

Threat (level 1) Threat (level 2) Impact and Stresses
Biological resource use Logging & wood harvesting / Unintentional effects: (subsistence/small scale) [harvest] Timing Scope Severity Impact
Past, Unlikely to Return Majority (50-90%) Rapid Declines Past Impact
Stresses
Ecosystem degradation
Climate change & severe weather Habitat shifting & alteration Timing Scope Severity Impact
Future Whole (>90%) Unknown Unknown
Stresses
Indirect ecosystem effects, Ecosystem degradation
Human intrusions & disturbance Work & other activities Timing Scope Severity Impact
Ongoing Whole (>90%) Unknown Unknown
Stresses
Species disturbance
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases / Black Rat (Rattus rattus) Timing Scope Severity Impact
Ongoing Whole (>90%) Unknown Unknown
Stresses
Indirect ecosystem effects, Reduced reproductive success
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases / Domestic Cat (Felis catus) Timing Scope Severity Impact
Ongoing Whole (>90%) Unknown Unknown
Stresses
Species mortality
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases / Domestic Pig (Sus domesticus) Timing Scope Severity Impact
Ongoing Whole (>90%) Rapid Declines High Impact: 8
Stresses
Ecosystem degradation
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases / Garlic Snail (Oxychilus alliarius) Timing Scope Severity Impact
Ongoing Whole (>90%) Unknown Unknown
Stresses
Competition
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases / Polynesian Rat (Rattus exulans) Timing Scope Severity Impact
Ongoing Whole (>90%) Unknown Unknown
Stresses
Indirect ecosystem effects, Reduced reproductive success
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases / Small Asian Mongoose (Herpestes javanicus) Timing Scope Severity Impact
Ongoing Whole (>90%) Unknown Unknown
Stresses
Reduced reproductive success
Invasive and other problematic species, genes & diseases Viral/prion-induced diseases / Avian Malaria (Plasmodium relictum) Timing Scope Severity Impact
Ongoing Whole (>90%) Rapid Declines High Impact: 8
Stresses
Species mortality
Invasive and other problematic species, genes & diseases Viral/prion-induced diseases / Avian Pox Virus (Poxvirus avium) Timing Scope Severity Impact
Ongoing Whole (>90%) Rapid Declines High Impact: 8
Stresses
Species mortality

Recommended citation
BirdLife International (2014) Species factsheet: Melamprosops phaeosoma. Downloaded from http://www.birdlife.org on 02/10/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 02/10/2014.

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 Critically Endangered - Possibly Extinct
Family Fringillidae (Finches and Hawaiian honeycreepers)
Species name author Casey & Jacobi, 1974
Population size 1-49 mature individuals
Population trend Decreasing
Distribution size (breeding/resident) 3 km2
Country endemic? Yes
Links to further information
- Summary information on this species