Ruddy Treerunner (Margarornis rubiginosus) - BirdLife species factsheet

Ruddy Treerunner Margarornis rubiginosus

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
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	high
Land-mass type		Average mass	-

Range

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	30,700 km²	medium
Severely fragmented?	no	-

Population

	Estimate	Data quality	Derivation	Year of estimate
Population size	20000-49999 mature individuals	poor	estimated	2016
Population trend	stable	-	suspected	-
Generation length	2.6 years	-	-	-

Population justification: The global population is estimated to number fewer than 50,000 mature individuals (Partners in Flight 2019); thus it is here placed in the band 20,000-49,999 mature individuals. The species is described as 'fairly common' (Stotz et al. 1996).

Trend justification:

The population trend has not been directly quantified. A remote-sensing study found that recent forest loss in the species's range was negligible (<1% over three generations; Tracewski et al. 2016). As the species seems to tolerate moderate forest fragmentation (del Hoyo et al. 2003), it is tentatively assessed as being stable.

Country/territory distribution

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Costa Rica	extant	native	yes
Panama	extant	native	yes

Important Bird and Biodiversity Areas (IBA)

Country/Territory	IBA Name
Costa Rica	Arenal-Monteverde
Costa Rica	Central Volcanic Cordillera
Costa Rica	El Rodeo, Cerros de Escazú and La Carpintera
Costa Rica	Talamanca Highlands
Costa Rica	Tilarán Highlands
Panama	General de División Omar Torrijos Herrera National Park
Panama	La Amistad International Park
Panama	Santa Clara
Panama	Santa Fé National Park
Panama	Volcán Barú National Park

Habitats & altitude

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Montane	major	resident
Altitude	1200 - 3000 m	Occasional altitudinal limits

Recommended citation
BirdLife International (2024) Species factsheet: Ruddy Treerunner Margarornis rubiginosus. Downloaded from https://datazone.birdlife.org/species/factsheet/ruddy-treerunner-margarornis-rubiginosus 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.