LC
Black-billed Cuckoo Coccyzus erythropthalmus



Taxonomy

Taxonomic source(s)
AERC TAC. 2003. AERC TAC Checklist of bird taxa occurring in Western Palearctic region, 15th Draft. Available at: http://www.aerc.eu/DOCS/Bird_taxa_of_the_WP15.xls.
Cramp, S. and Simmons, K.E.L. (eds). 1977-1994. Handbook of the birds of Europe, the Middle East and Africa. The birds of the western Palearctic. Oxford University Press, Oxford.
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: https://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
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 -
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 7,140,000 km2 medium
Extent of Occurrence (non-breeding) 7,920,000 km2 medium
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size 880000 mature individuals poor inferred 2020
Population trend decreasing - suspected -
Generation length 2.38 years - - -

Population justification: The global population is inferred to number 880,000 mature individuals (Partners in Flight 2020).

Trend justification: The species has been undergoing a large, significant decline between 1970 and 2017 (Partners in Flight 2019). Short-term trends suggest that the population declined by 27% over the past ten years (Pardieck et al. 2018). Population densities however seem to fluctuate considerably over time in relation to caterpillar outbreaks (Hughes 2020, see also long-term data from Pardieck et al. 2018). Given the uncertainty, the species is tentatively considered to be in decline, but the rate of decline is not considered to approach the threshold for Vulnerable over the relevant three generation time periods for this assessment.


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Antigua and Barbuda extant native yes
Argentina extant native yes
Bahamas extant native yes
Barbados extant native yes
Belize extant native yes
Bermuda (to UK) extant vagrant yes
Bolivia extant native yes
Brazil extant native yes
Canada extant native yes
Cayman Islands (to UK) extant native yes
Colombia extant native yes
Costa Rica extant native yes
Cuba extant native yes
Denmark extant vagrant
Dominica extant native yes
Dominican Republic extant native yes
Ecuador extant native yes
France extant vagrant
Germany extant vagrant
Greenland (to Denmark) extant vagrant
Guadeloupe (to France) extant vagrant yes
Guatemala extant native yes
Haiti extant native yes
Honduras extant native yes
Ireland extant vagrant
Italy extant vagrant
Jamaica extant native yes
Mexico extant native yes
Nicaragua extant native yes
Panama extant native yes
Paraguay extant native yes
Peru extant native yes
Portugal extant vagrant
Puerto Rico (to USA) extant native yes
St Lucia extant native yes
St Pierre and Miquelon (to France) extant vagrant
Trinidad and Tobago extant native yes
United Kingdom extant vagrant
USA extant native yes 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 Subtropical/Tropical Dry suitable non-breeding
Forest Subtropical/Tropical Dry suitable breeding
Forest Subtropical/Tropical Moist Lowland suitable non-breeding
Forest Subtropical/Tropical Moist Lowland suitable breeding
Shrubland Subtropical/Tropical Dry suitable non-breeding
Shrubland Subtropical/Tropical Dry suitable breeding
Shrubland Subtropical/Tropical Moist suitable non-breeding
Shrubland Subtropical/Tropical Moist suitable breeding
Altitude 0 - 2000 m Occasional altitudinal limits  

Recommended citation
BirdLife International (2024) Species factsheet: Black-billed Cuckoo Coccyzus erythropthalmus. Downloaded from https://datazone.birdlife.org/species/factsheet/black-billed-cuckoo-coccyzus-erythropthalmus on 18/12/2024.
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 18/12/2024.