LC
Viridian Metaltail Metallura williami



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.
SACC. 2005 and updates. A classification of the bird species of South America. Available at: #http://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
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 4 g
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 112,000 medium
Number of locations -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals unknown not applicable not applicable 0
Population trend Decreasing suspected -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations - - -
Largest subpopulations - - -
Generation length (yrs) 4.2 - - -

Population justification: The global population size has not been quantified, but this species is described as 'uncommon' (Stotz et al. 1996).

Trend justification: The population is suspected to be in decline owing to ongoing habitat destruction through burning of its natural habitat to support cattle grazing and removal of remnant forest patches (del Hoyo et al. 1999).


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Colombia N Extant Yes
Ecuador N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Colombia Bosques del Oriente de Risaralda
Colombia Cuenca del Río Toche
Colombia Lagunas Bombona y Vancouver
Colombia Munchique Natural National Park and southern extension
Colombia Puracé Natural National Park
Colombia Reserva Hidrográfica, Forestal y Parque Ecológico de Río Blanco
Colombia Alto Quindío
Colombia Reserva Natural Semillas de Agua
Ecuador El Ángel - Cerro Golondrinas and surrounding areas
Ecuador Estación Biológica Guandera-Cerro Mongus
Ecuador Montañas de Zapote-Najda
Ecuador Cajas-Mazán
Ecuador Parque Nacional Llanganates
Ecuador Parque Nacional Podocarpus
Ecuador Parque Nacional Sangay
Ecuador Parque Nacional Cayambe-Coca
Ecuador Reserva Ecológica Los Illinizas y alrededores
Colombia Reserva Natural Tambito
Colombia Reserva Natural Ibanasca
Colombia Reservas Comunitarias de Roncesvalles
Ecuador Manteles - El Triunfo - Sucre

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Montane suitable resident
Grassland Subtropical/Tropical High Altitude major resident
Altitude 2700 - 4000 m Occasional altitudinal limits (min) 2100 m

Utilisation
Purpose Primary form used Life stage used Source Scale Level Timing
Pets/display animals, horticulture - - International Non-trivial Recent

Recommended citation
BirdLife International (2020) Species factsheet: Metallura williami. Downloaded from http://www.birdlife.org on 02/12/2020. Recommended citation for factsheets for more than one species: BirdLife International (2020) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 02/12/2020.