LC
Glittering-throated Emerald Chionomesa fimbriata



Taxonomy

Taxonomic note
Previously listed as Amazilia fimbriata (del Hoyo and Collar 2014), but moved to current genus following a recent overhaul of all genera by NACC, based on McGuire et al. (2014), Stiles et al. (2017a, b) and others. Has previously been placed in genus Polyerata or Agyrtria. Closely related to C. lactea. Subspecies fluviatilis, nigricauda and tephrocephala were all previously treated elsewhere as distinct species. Several proposed subspecies are invalid owing to similar morphology and range overlap with adjacent forms: obscuricauda has proved to be identical to elegantissima; maculicaudus and alia are inseparable from nominate. In Venezuela, the very local form described as Amazilia distans (known only from Táchira) is now thought probably of hybrid origin, present species x Chlorestes cyanus, although sometimes recognized as valid (Restall et al. 2006). Has been suggested that proposed species Amazilia cyaneotincta, known only from two skins of uncertain origin, is an aberrant form of present species, but this seems unlikely; in plumage pattern it is more similar to Polyerata amabilis. Seven subspecies currently recognized.

Taxonomic source(s)
Handbook of the Birds of the World and BirdLife International. 2022. Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 7. Available at: https://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v7_Dec22.zip.

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 Least Concern
2012 Least Concern
2009 Least Concern
2008 Least Concern
2004 Least Concern
2000 Lower Risk/Least Concern
1994 Lower Risk/Least Concern
1988 Lower Risk/Least Concern
Species attributes

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

Estimate Data quality
Extent of Occurrence (breeding/resident) 12,700,000 km2 medium
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size unknown - - -
Population trend decreasing - - -
Rate of change over the future 10 years/3 generations (longer of the two periods) 1-25% - - -
Generation length 2.33 years - - -

Population justification: The global population size has not been quantified, but this species is described as 'common' (Stotz et al. 1996). This species is considered to have a medium dependency on forest habitat, and tree cover is estimated to have declined by 6.4% within its mapped range over the past 10 years (Global Forest Watch 2022, using Hansen et al. [2013] data and methods disclosed therein). Therefore, as a precautionary measure, it is tentatively suspected that this loss of cover may have led to a decline of between 1-19% in the species' population size over the same time frame.

Trend justification:   .


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Bolivia extant native yes
Brazil extant native yes
Colombia extant native yes
Ecuador extant native yes
French Guiana extant native yes
Guyana extant native yes
Paraguay extant native
Peru extant native yes
Suriname extant native yes
Venezuela extant native yes

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

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Plantations suitable resident
Artificial/Terrestrial Rural Gardens suitable resident
Artificial/Terrestrial Subtropical/Tropical Heavily Degraded Former Forest suitable resident
Forest Subtropical/Tropical Dry suitable resident
Forest Subtropical/Tropical Mangrove Vegetation Above High Tide Level suitable resident
Forest Subtropical/Tropical Moist Lowland suitable resident
Savanna Dry suitable resident
Shrubland Subtropical/Tropical Dry suitable resident
Altitude 0 - 1100 m Occasional altitudinal limits  

Utilisation
Purpose Scale
Pets/display animals, horticulture international

Recommended citation
BirdLife International (2024) Species factsheet: Glittering-throated Emerald Chionomesa fimbriata. Downloaded from https://datazone.birdlife.org/species/factsheet/glittering-throated-emerald-chionomesa-fimbriata on 27/12/2024.
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 27/12/2024.