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VU
Russet Hawk-owl Ninox odiosa

IUCN Red List Criteria

Critically Endangered  
Endangered  
Vulnerable A2c+3c+4c 

IUCN Red List history

Year Category
2012 Vulnerable
2008 Vulnerable
2004 Least Concern
2000 Lower Risk/Least Concern
1994 Lower Risk/Least Concern
1988 Lower Risk/Least Concern

Species attributes

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

Distribution

  Estimate Data quality
Extent of Occurrence breeding/resident (km2) 28,300 medium
Number of locations -
Fragmentation -

Population & trend

  Estimate Data quality Derivation Year of estimate
No. of mature individuals 10000-19999 poor Inferred 2000
Population trend Decreasing poor -
Number of subpopulations - - -
Largest subpopulation - - -
Generation length (yrs) 10 - - -
Population justification: The population is estimated to be in the band 10,000-19,999 mature individuals, equating to 15,000-29,999 individuals in total, rounded here to 15,000-30,000 individuals.
Trend justification: Buchanan et al. (2008) calculated the rate of forest loss within the species's range on New Britain as 33.8% over three generations. Hence, this decline is expected to continue.

Country/Territory distribution

Country/Territory Occurrence status Extinct Breeding Non-breeding Passage
Papua New Guinea Native No      

Habitats & altitude

Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Arable Land possible resident
Artificial/Terrestrial Pastureland possible resident
Artificial/Terrestrial Plantations possible resident
Artificial/Terrestrial Subtropical/Tropical Heavily Degraded Former Forest possible resident
Forest Subtropical/Tropical Moist Lowland major resident
Altitude 0 - 1200 m Occasional altitudinal limits  

Threats & impact

Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & Aquaculture Annual & perennial non-timber crops / Agro-industry farming Timing Scope Severity Impact
Ongoing Majority (50-90%) Rapid Declines Medium Impact:
Stresses
None
Biological resource use Fishing & harvesting aquatic resources / Unintentional effects: (large scale) Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Decline Medium Impact:
Stresses
Ecosystem degradation, Ecosystem conversion

Recommended citation
BirdLife International (2013) Species factsheet: Ninox odiosa. Downloaded from http://www.birdlife.org on 25/05/2013. Recommended citation for factsheets for more than one species: BirdLife International (2013) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 25/05/2013.

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 Vulnerable
Family Strigidae (Owls)
Species name author Sclater, 1877
Population size 10000-19999 mature individuals
Population trend Decreasing
Distribution size (breeding/resident) 28,300 km2
Country endemic? Yes
Links to further information
- Summary information on this species