VU
Madagascar Red Owl Tyto soumagnei



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
- - C2a(i)

Red List history
Year Category Criteria
2023 Vulnerable C2a(i)
2016 Vulnerable A3bc; C1+2a(i)
2012 Vulnerable C2a(i)
2009 Vulnerable C2a(i)
2008 Endangered
2004 Endangered
2000 Endangered
1996 Endangered
1994 Endangered
1988 Threatened
Species attributes

Migratory status not a migrant Forest dependency high
Land-mass type shelf island
Average mass -
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 249,000 km2 medium
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size 1250-3750 mature individuals poor estimated 2023
Population trend decreasing poor inferred 2016-2029
Rate of change over the past 10 years/3 generations (longer of the two periods) 15-25% - - -
Rate of change over the future 10 years/3 generations (longer of the two periods) 15-29% - - -
Rate of change over the past & future 10 years/3 generations (longer of the two periods) 15-29% - - -
Generation length 4.3 years - - -
Number of subpopulations 2-100 - - -
Percentage of mature individuals in largest subpopulation 1-89% - - -

Population justification: The cover of primary rainforest only in Madagascar in 2023 has been estimated at c. 25,000 km2, based on a primary forest cover in 2000 of approximately 38,500 km2 and an annual decline of 1.86% (L.-A. Réné de Roland in litt. 2023). From this, a precautionary population estimate was calculated of 1,250 to 2,500 mature individuals, using 0.2 individuals/km2, as is the density estimated in Benamevika, which is considered optimal habitat for the species, but with the assumption that habitat in the rest of the island is not as optimal or that the species is does not occupy all available habitat at such a density as in Benamevika, with a wide range of between 1/3 and 2/3 of habitat occupied (L.-A. Réné de Roland in litt. 2023). However, were all habitat occupied, the population size would reach 3,750 mature individuals. Considering this, the population size is therefore placed in the wide but estimated band of 1,250-3,750 mature individuals.

Trend justification: The species is dependent on particularly primary but also secondary forests for its survival, and although it can use open habitats for hunting, it does not breed outside of forests. Therefore, the continued destruction and degradation of these habitats through clearance for subsistence cultivation, commercial logging and uncontrolled fires, can cause a decline in the species' population size, with an increasing human population also putting pressure on the species' remaining habitat (Du Puy and Moat 1996). The current population size is therefore inferred to be experiencing a continuing decline due to the loss of suitable key habitats. 
This habitat loss is supported by the estimates of forest cover loss within its range as reported by Global Forest Watch (2022, using Hansen et al. [2013] data and methods disclosed therein), which has been estimated at approximately 19% over the species' past three generations, and the past rate of decline of the species' population is suspected to be in line with the rate of decline of forest habitat and thus placed in a past decline range of 15-25%. This forest loss is projected to continue over the next three generations at a rate approximately between 18% (based on the rate of loss over the past three generations) and 29% (based on the rate of loss over the past five years [2017-2021]) (Global Forest Watch 2022, using Hansen et al. [2013] data and methods disclosed therein). Therefore, again suspected to be in line with forest loss, the rate of future decline of the species' population is thus placed in the range of 15-29%, with the rate of decline having started accelerating in approximately 2012. Based on average annual forest loss rates of 2.07% between 2016-2021 (Global Forest Watch 2022, using Hansen et al. [2013] data and methods disclosed therein), the rate of forest loss within the species' range between 2016 and 2029 is estimated at between 15-29%. As the species' rate of population decline is suspected to be in step with the loss of its habitat, its rate of decline between 2016-2029 is also suspected to be within this range.


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Madagascar extant native yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Madagascar Mantadia National Park and Analamazaotra Special Reserve
Madagascar Marotandrano Special Reserve
Madagascar Masoala National Park
Madagascar Montagne d'Ambre National Park and Special Reserve
Madagascar Tsaratanana Strict Nature Reserve and extension
Madagascar Zahamena National Park and Strict Reserve

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Aquatic & Marine Artificial/Aquatic - Irrigated Land (includes irrigation channels) suitable non-breeding
Artificial/Terrestrial Arable Land suitable non-breeding
Artificial/Terrestrial Plantations suitable non-breeding
Artificial/Terrestrial Subtropical/Tropical Heavily Degraded Former Forest suitable non-breeding
Forest Subtropical/Tropical Dry suitable resident
Forest Subtropical/Tropical Moist Lowland major resident
Forest Subtropical/Tropical Moist Montane major resident
Altitude 0 - 2000 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Annual & perennial non-timber crops - Shifting agriculture Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation
Agriculture & aquaculture Annual & perennial non-timber crops - Small-holder farming Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Hunting & trapping terrestrial animals - Intentional use (species is the target) Timing Scope Severity Impact
Ongoing Unknown Negligible declines Unknown
Stresses
Species mortality
Biological resource use Logging & wood harvesting - Unintentional effects: (large scale) [harvest] Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Climate change & severe weather Habitat shifting & alteration Timing Scope Severity Impact
Future Whole (>90%) Slow, Significant Declines Low Impact: 5
Stresses
Indirect ecosystem effects, Ecosystem degradation, Ecosystem conversion
Natural system modifications Fire & fire suppression - Increase in fire frequency/intensity Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Species disturbance, Ecosystem degradation, Ecosystem conversion
Residential & commercial development Housing & urban areas Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem conversion

Utilisation
Purpose Scale
Food - human subsistence
Medicine - human & veterinary international

Recommended citation
BirdLife International (2024) Species factsheet: Madagascar Red Owl Tyto soumagnei. Downloaded from https://datazone.birdlife.org/species/factsheet/madagascar-red-owl-tyto-soumagnei on 23/11/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org/species/search on 23/11/2024.