Verdin (Auriparus flaviceps) - BirdLife species factsheet

Verdin Auriparus flaviceps

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.

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
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	does not normally occur in forest
Land-mass type		Average mass	7 g

Range

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	2,950,000 km²	medium
Severely fragmented?	no	-

Population

	Estimate	Data quality	Derivation	Year of estimate
Population size	7200000 mature individuals	poor	inferred	2022
Population trend	decreasing	-	estimated	-
Rate of change over the past 10 years/3 generations (longer of the two periods)	12-19%	-	-	-
Generation length	2.08 years	-	-	-

Population justification: The global population is inferred to number 7.2 million mature individuals (Partners in Flight 2022).

Trend justification: The species has been undergoing a moderate decline at an average rate of 1.3% per year between 1970 and 2017 (Partners in Flight 2022). This equates to a decline of 12% over ten years. The population in North America has declined by 19% over the past ten years, though this value is non-significant (Pardieck et al. 2018). The population however fluctuates between years depending on insect availability (Webster 2020).

Country/territory distribution

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Mexico	extant	native	yes
USA	extant	native	yes

Important Bird and Biodiversity Areas (IBA)

Country/Territory	IBA Name
Mexico	Isla San Marcos

Habitats & altitude

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Desert	Hot	major	resident
Savanna	Dry	suitable	resident
Shrubland	Subtropical/Tropical Dry	major	resident
Shrubland	Subtropical/Tropical High Altitude	suitable	resident
Altitude	0 - 2360 m	Occasional altitudinal limits

Recommended citation
BirdLife International (2024) Species factsheet: Verdin Auriparus flaviceps. Downloaded from https://datazone.birdlife.org/species/factsheet/verdin-auriparus-flaviceps on 23/11/2024.
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 23/11/2024.