Western Wood-pewee Contopus sordidulus


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: #

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
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 full migrant Forest dependency medium
Land-mass type Average mass 13 g

Estimate Data quality
Extent of Occurrence (breeding/resident) 14,400,000 km2 medium
Extent of Occurrence (non-breeding) 5,620,000 km2 medium
Severely fragmented? no -
Estimate Data quality Derivation Year of estimate
Population size 9600000 mature individuals poor estimated 2019
Population trend decreasing - estimated -
Rate of change over the past 10 years/3 generations (longer of the two periods) 5% - - -
Generation length 2.41 years - - -

Population justification: The global population is estimated to number 9,600,000 mature individuals (Partners in Flight 2019).

Trend justification: This species has been undergoing a large, significant decline at an average rate of -1.66% per year between 1970 and 2017 (Partners in Flight 2019; Rosenberg et al. 2019). Short-term trends suggest that declines have slowed down in recent years, amounting to 5% over the past ten years, although this number is non-significant (Pardieck et al. 2018).

Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Belize extant vagrant
Bolivia extant native yes
Brazil extant native yes
Canada extant native yes
Chile extant vagrant yes
Colombia extant native yes
Costa Rica extant native yes
Cuba extant native yes
Ecuador extant native yes
El Salvador extant native yes yes
French Guiana extant vagrant yes
Guatemala extant native yes yes
Guyana extant native yes
Honduras extant native yes yes
Jamaica extant vagrant
Mexico extant native yes yes
Nicaragua extant native yes yes
Panama extant native yes yes
Peru extant native yes
USA 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
Forest Boreal suitable breeding
Forest Subtropical/Tropical Moist Lowland major non-breeding
Forest Subtropical/Tropical Moist Lowland major breeding
Forest Subtropical/Tropical Moist Montane major non-breeding
Forest Subtropical/Tropical Moist Montane major breeding
Forest Temperate major breeding
Altitude 0 - 3000 m Occasional altitudinal limits  

Recommended citation
BirdLife International (2024) Species factsheet: Contopus sordidulus. Downloaded from on 27/02/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from on 27/02/2024.