LC
Andaman Boobook Ninox affinis



Taxonomy

Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.

IUCN Red list criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2017 Least Concern
2016 Near Threatened B1ab(iii,v)
2012 Near Threatened B1ab(iii,v)
2008 Near Threatened B1a+b(iii)
2004 Near Threatened
2000 Lower Risk/Near Threatened
1994 Lower Risk/Near Threatened
1988 Near Threatened
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) 15,700 medium
Number of locations -
Severely Fragmented -
Population and trend
Value Data quality Derivation Year of estimate
No. of mature individuals 2500-9999 poor estimated 2017
Population trend Decreasing suspected -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations - - -
Percentage in largest subpopulation - - -
Generation length (yrs) 4.1 - - -

Population justification: The population size has not been directly estimated, but based on reported home range sizes of the Morepork, N. novaeseelandiae, in New Zealand (3.5-307 ha [Imboden 1975, Pryde and Green 2016]) and Southern Boobook, N. boobook, in Australia (18-206 ha [Olsen et al. 2011]) and assuming that only a proportion of its range is occupied, then the population size of this species may fall in the range of 2,500-9,999 mature individuals.

Trend justification: The population is suspected to be in slow to moderate decline owing to on-going habitat loss and degradation. The rate of decline is not thought to be more rapid because the species seems to tolerate human-modified habitats.


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
India N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
India Austin Strait
India Barangtang - Rafters Creek
India Car Nicobar
India Chainpur and Hanspuri
India Great Nicobar, Little Nicobar
India Interview Island Wildlife Sanctuary
India Jarawa Reserve (Middle Andaman and South Andaman)
India Kadakachang (Katakatchang)
India Little Andaman
India Mahatma Gandhi Marine National Park (Wandoor National Park)
India Mount Diavalo and Cuthbert Bay
India Mount Harriet National Park
India North and South Sentinel
India Rani Jhansi Marine National Park
India Saddle Peak National Park
India Tillangchong, Camorta, Katchal, Nancowry and Trinkat

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Plantations suitable resident
Forest Subtropical/Tropical Mangrove Vegetation Above High Tide Level suitable resident
Forest Subtropical/Tropical Moist Lowland suitable resident
Altitude   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%) Unknown Unknown
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Annual & perennial non-timber crops - Small-holder farming Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Logging & wood harvesting - Unintentional effects: (large scale) [harvest] Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] Timing Scope Severity Impact
Ongoing Majority (50-90%) Unknown Unknown
Stresses
Ecosystem degradation
Pollution Agricultural & forestry effluents - Herbicides and pesticides Timing Scope Severity Impact
Ongoing Minority (<50%) Unknown Unknown
Stresses
Species mortality

Recommended citation
BirdLife International (2022) Species factsheet: Ninox affinis. Downloaded from http://www.birdlife.org on 06/12/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 06/12/2022.