EN
Red-crowned Amazon Amazona viridigenalis



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(ii) C2a(ii)

Red List history
Year Category Criteria
2021 Endangered C2a(ii)
2018 Endangered A2bcd+3bcd+4bcd
2016 Endangered A2bcd+3bcd+4bcd
2013 Endangered A2bcd+3bcd+4bcd
2012 Endangered A2bcd+3bcd+4bcd
2008 Endangered A2b,c,d; A3b,c,d; A4b,c,d
2004 Endangered
2000 Endangered
1996 Endangered
1994 Endangered
1988 Threatened
Species attributes

Migratory status nomadic Forest dependency high
Land-mass type continent
Average mass -
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 76,500 km2 medium
Area of Occupancy (breeding/resident) 15,500 km2
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size 2000-4300 mature individuals medium estimated 2000
Population trend decreasing poor inferred -
Generation length 8.2 years - - -
Number of subpopulations 1 - - -
Percentage of mature individuals in largest subpopulation 100% - - -

Population justification: In 1992-1994, estimated densities in one area in Mexico indicated a wild population of 3,000-6,500 birds (E. C. Enkerlin-Hoeflich in litt. 1994). This estimate roughly equates to 2,000-4,300 mature individuals. The population has however declined since, and therefore the value is taken as a maximum. A more up-to-date estimate of the wild population is urgently required.
From the spatial spread of observational records (per eBird 2021) it appears that the wild population is concentrated in three areas in north-eastern Mexico. However, particularly during the non-breeding season the species is known to move over large areas, and observational records in the intervening areas suggest that there is connectivity among the population. As such, the species is tentatively assessed as forming only one subpopulation.

Trend justification: The species has undergone a large, significant decline between 1970 and 2017 (Partners in Flight 2019). Historic densities recorded for the species were 25.2 individuals/km2 in the 1970s (Castro 1976), falling to 5.7 individuals/km2 in one area in 1992-1994 (E. C. Enkerlin-Hoeflich in litt. 1994; Enkerlin-Hoeflich 1995), indicating a decline of up to 78% over this period. Declines are thought to continue due to the impacts of trapping pressure and habitat loss (Enkerlin-Hoeflich and Hogan 2020), but current rates are unknown.


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Mexico extant native yes
Puerto Rico (to USA) extant introduced yes
USA extant introduced yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Mexico Cerro del Metate
Mexico Desembocadura del Río Soto La Marina
Mexico El Cielo
Mexico Humedales del Sur de Tamaulipas y Norte de Veracruz
Mexico Parras de la Fuente
Mexico Sierra de Arteaga
Mexico Sierra de Tamaulipas
Mexico Sierra del Abra - Tanchipa
Mexico Tlanchinol y Bosques de Montaña del Noreste de Hidalgo

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Pastureland suitable resident
Artificial/Terrestrial Urban Areas marginal resident
Forest Subtropical/Tropical Dry major resident
Forest Subtropical/Tropical Moist Lowland major resident
Altitude 0 - 1000 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%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Livestock farming & ranching - Agro-industry grazing, ranching or 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 Majority (50-90%) Very Rapid Declines High Impact: 8
Stresses
Species disturbance, Ecosystem degradation, Reduced reproductive success, Species mortality
Residential & commercial development Housing & urban areas Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation

Utilisation
Purpose Scale
Pets/display animals, horticulture national, international

Recommended citation
BirdLife International (2024) Species factsheet: Red-crowned Amazon Amazona viridigenalis. Downloaded from https://datazone.birdlife.org/species/factsheet/red-crowned-amazon-amazona-viridigenalis on 18/12/2024.
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 18/12/2024.