LC
Bearded Screech-owl Megascops barbarus



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
2020 Least Concern
2016 Vulnerable B1ab(i,ii,iii,v)
2013 Vulnerable B1ab(i,ii,iii,v)
2012 Vulnerable B1ab(i,ii,iii,v)
2008 Near Threatened B1a+b(i,ii,iii,v)
2004 Near Threatened
2000 Lower Risk/Near Threatened
1994 Lower Risk/Near Threatened
1988 Lower Risk/Least Concern
Species attributes

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

Estimate Data quality
Extent of Occurrence (breeding/resident) 31,000 km2 medium
Severely fragmented? yes -
Population
Estimate Data quality Derivation Year of estimate
Population size 20000-49999 mature individuals medium estimated 2019
Population trend decreasing - inferred 2014-2024
Rate of change over the past 10 years/3 generations (longer of the two periods) 1-19% - - -
Rate of change over the future 10 years/3 generations (longer of the two periods) 1-19% - - -
Rate of change over the past & future 10 years/3 generations (longer of the two periods) 1-19% - - -
Generation length 2.5 years - - -

Population justification: The global population is thought to number fewer than 50,000 mature individuals (Partners in Flight 2019) and the species is here placed in the band 20,000-49,999 mature individuals. In Chiapas (Mexico), the total mean number of the species detected per linear trail was 1.65±0.61 individuals/km in nine localities (P. Enríquez in litt. 2016).

Trend justification: The population trend for this species has not been directly estimated, but the species is suspected to be in decline owing to habitat degradation. The rate of forest loss varies locally and over time; in the highlands of Chiapas (Mexico) forest loss amounted to 2.6% annually between 1975 and 2000 (Cayuela et al. 2006). More recent data across the entire range, however, suggest that forest loss is moderately low, numbering c. 7% over the past ten years (Global Forest Watch 2020). The species is highly forest-dependent and the most severe threat known to the species is habitat loss. Given that the species is also locally prosecuted, the rate of population decline is potentially higher than forest loss. Overall, the rate of population decline is unlikely to exceed 20% over ten years.


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

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Guatemala Cuilco
Guatemala Yalijux

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Montane major resident
Altitude 1800 - 2500 m Occasional altitudinal limits (min) 1400 m

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%) 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 Minority (<50%) Negligible declines Low Impact: 4
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
Biological resource use Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation
Invasive and other problematic species, genes & diseases Problematic native species/diseases Timing Scope Severity Impact
Past, Likely to Return Majority (50-90%) Slow, Significant Declines Past Impact
Stresses
Ecosystem degradation
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
Pets/display animals, horticulture international

Recommended citation
BirdLife International (2024) Species factsheet: Bearded Screech-owl Megascops barbarus. Downloaded from https://datazone.birdlife.org/species/factsheet/bearded-screech-owl-megascops-barbarus 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.