LC
Yellow-fronted Whitestart Myioborus ornatus



Taxonomy

Taxonomic note

Myioborus ornatus and M. chrysops (del Hoyo and Collar 2016) were previously lumped as M. ornatus following SACC (2005 & updates); Sibley & Monroe (1990, 1993); Stotz et al. (1996).

 

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.

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

Red List history
Year Category Criteria
2022 Least Concern
2016 Least Concern
Species attributes

Migratory status not a migrant Forest dependency High
Land mass type Average mass 12 g
Distribution

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 51,700 medium
Number of locations -
Severely Fragmented -
Population and trend
Value Data quality Derivation Year of estimate
No. of mature individuals unknown not applicable not applicable 0
Population trend Stable 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 - - -
Percentage in largest subpopulation - - -

Population justification: The global population size has not been quantified, however is considered common through its range (Curson et al. 2020).

Trend justification: Tree cover loss in the last 10 years has equated to less than 2% within the species range (Global Forest Watch 2021, using Hansen et al. [2013] data and methods disclosed therein). As such, the population is suspected to be stable.


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

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Colombia Complejo Lacustre de Fúquene, Cucunubá y Palacio
Colombia Parque Nacional Natural Chingaza and surroundings
Colombia Cerro La Judía
Venezuela Parque Nacional El Tamá
Colombia Soatá
Colombia Parque Nacional Natural Tamá
Colombia Bosques de la Falla del Tequendama
Colombia Cuchilla de Buena Vista
Colombia Finca la Betulia Reserva la Patasola
Colombia Cerros Occidentales de Tabio y Tenjo
Colombia Parque Nacional Natural Cueva de los Guácharos
Colombia Parque Nacional Natural de Pisba
Colombia Parque Nacional Natural Las Orquídeas
Colombia Sumapaz Natural National Park

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Montane major resident
Altitude 2100 - 3400 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Annual & perennial non-timber crops - Small-holder farming Timing Scope Severity Impact
Ongoing Minority (<50%) Negligible declines Low Impact: 4
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] Timing Scope Severity Impact
Ongoing Minority (<50%) Negligible declines Low Impact: 4
Stresses
Ecosystem degradation, Ecosystem conversion

Recommended citation
BirdLife International (2022) Species factsheet: Myioborus ornatus. Downloaded from http://www.birdlife.org on 02/12/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 02/12/2022.