LC
Northern White-fringed Antwren Formicivora intermedia



Taxonomy

Taxonomic note

Formicivora grisea and F. intermedia (del Hoyo and Collar 2016) were previously lumped as F. grisea following AOU (1998 & supplements), SACC (2005 & updates), Sibley & Monroe (1990, 1993) and 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
2021 Least Concern
2016 Least Concern
Species attributes

Migratory status not a migrant Forest dependency Medium
Land mass type Average mass 11 g
Distribution

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 1,520,000 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 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 - - -
Percentage in largest subpopulation - - -
Generation length (yrs) 4.3 - - -

Population justification: The global population size has not been quantified given recent taxonomic splits. The species is described as 'common' (Stotz et al. 1996).

Trend justification: The species is undergoing a large, significant decline (Partners in Flight 2019).


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

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

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Dry suitable resident
Forest Subtropical/Tropical Mangrove Vegetation Above High Tide Level suitable resident
Forest Subtropical/Tropical Moist Lowland suitable resident
Forest Subtropical/Tropical Moist Montane suitable resident
Savanna Moist suitable resident
Shrubland Subtropical/Tropical Dry suitable resident
Shrubland Subtropical/Tropical Moist suitable resident
Altitude 0 - 1600 m Occasional altitudinal limits  

Recommended citation
BirdLife International (2022) Species factsheet: Formicivora intermedia. Downloaded from http://www.birdlife.org on 16/08/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 16/08/2022.