LC
Azure-shouldered Tanager Tangara cyanoptera



Taxonomy

Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.
SACC. 2005 and updates. A classification of the bird species of South America. Available at: https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm.

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

Red List history
Year Category Criteria
2024 Least Concern
2016 Near Threatened A2c+3c+4c
2012 Near Threatened A2c+3c+4c
2008 Near Threatened A2c; A3c; A4c
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 continent
Average mass -
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 954,000 km2 medium
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size unknown - - -
Population trend decreasing poor suspected 2017-2028
Rate of change over the past 10 years/3 generations (longer of the two periods) 5-19% - - -
Rate of change over the future 10 years/3 generations (longer of the two periods) 5-19% - - -
Rate of change over the past & future 10 years/3 generations (longer of the two periods) 5-19% - - -
Generation length 3.58 years - - -
Number of subpopulations 3-100 - - -
Percentage of mature individuals in largest subpopulation 1-89% - - -

Population justification: The global population size has not been quantified, but this species is described fairly common (Silveira et al. 2023). In view of the high number of records within its large range (see eBird 2023), the population is unlikely to be small.

Trend justification: Precise data on the population trend are lacking, but slow declines are suspected to be occurring owing to ongoing habitat loss.
Tree cover within the range was lost at a rate of 7% over the past three generations (10.7 years; Global Forest Watch 2023, using Hansen et al. [2013] data and methods disclosed therein). Even though the species is also found at borders and in tall secondary growth it remains dependent on forests (Hilty 2020, Silveira et al. 2023). Consequently, the rate of population decline may be equivalent, or even exceed, the rate of tree cover loss. To account for uncertainty, the rate of decline is here placed in the band 5-19% over three generations.


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

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Brazil Estação Ecológica de Juréia-Itatins
Brazil Maciço Florestal de Paranapiacaba
Brazil Parque Estadual da Serra do Mar (entre Pedro de Toledo e Cubatão)
Brazil Parque Estadual da Serra do Mar (entre Santos e São Sebastião)
Brazil Serra da Bocaina / Paraty / Angra dos Reis

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Lowland major resident
Altitude 0 - 1200 m Occasional altitudinal limits (max) 1600 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 Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem conversion
Agriculture & aquaculture Livestock farming & ranching - Agro-industry grazing, ranching or farming Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem conversion
Agriculture & aquaculture Wood & pulp plantations - Agro-industry plantations Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem conversion
Residential & commercial development Housing & urban areas Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem conversion
Transportation & service corridors Roads & railroads Timing Scope Severity Impact
Ongoing Minority (<50%) Negligible declines Low Impact: 4
Stresses
Ecosystem degradation, Ecosystem conversion

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

Recommended citation
BirdLife International (2024) Species factsheet: Azure-shouldered Tanager Tangara cyanoptera. Downloaded from https://datazone.birdlife.org/species/factsheet/azure-shouldered-tanager-tangara-cyanoptera on 23/12/2024.
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 23/12/2024.