Red-billed Scythebill (Campylorhamphus trochilirostris) | Details

Red-billed Scythebill Campylorhamphus trochilirostris

Current view: Data table and detailed info

Taxonomy

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: 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
2020	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	not a migrant	Forest dependency	medium
Land-mass type		Average mass	41 g

Range

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	15,300,000 km²	medium
Severely fragmented?	no	-

Population

	Estimate	Data quality	Derivation	Year of estimate
Population size	500000-4999999 mature individuals	poor	estimated	2016
Population trend	decreasing	-	suspected	-
Generation length	3 years	-	-	-

Population justification: The global population is estimated to number 500,000-4,999,999 mature individuals (Partners in Flight 2019). The species is described as 'fairly common but patchily distributed' (Stotz et al. 1996).

Trend justification:

The species is undergoing a moderate decline (Partners in Flight 2019).

Country/territory distribution

Country/Territory	Presence	Origin	Resident
Argentina	extant	native	yes
Bolivia	extant	native	yes
Brazil	extant	native	yes
Colombia	extant	native	yes
Ecuador	extant	native	yes
Panama	extant	native	yes
Paraguay	extant	native	yes
Peru	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
Artificial/Terrestrial	Subtropical/Tropical Heavily Degraded Former Forest	suitable	resident
Forest	Subtropical/Tropical Dry	suitable	resident
Forest	Subtropical/Tropical Moist Lowland	suitable	resident
Forest	Subtropical/Tropical Moist Montane	suitable	resident
Forest	Subtropical/Tropical Swamp	major	resident
Savanna	Dry	major	resident
Savanna	Moist	major	resident
Shrubland	Subtropical/Tropical Dry	suitable	resident
Shrubland	Subtropical/Tropical Moist	suitable	resident
Altitude	0 - 1200 m	Occasional altitudinal limits	(max) 2100 m

Recommended citation
BirdLife International (2025) Species factsheet: Red-billed Scythebill Campylorhamphus trochilirostris. Downloaded from https://datazone.birdlife.org/species/factsheet/red-billed-scythebill-campylorhamphus-trochilirostris on 02/01/2025.
Recommended citation for factsheets for more than one species: BirdLife International (2025) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org/species/search on 02/01/2025.