LC
Grass Wren Cistothorus platensis



Taxonomy

Taxonomic note
Cistothorus platensis and C. stellaris (del Hoyo and Collar 2016) were previously lumped as C. platensis (see AOU [1998 & supplements]; SACC [2005 & updates]; Sibley & Monroe [1990, 1993]; Stotz et al. [1996]).

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
2016 Least Concern
2012 Not Recognised
2008 Not Recognised
2004 Not Recognised
2000 Not Recognised
1994 Not Recognised
1988 Not Recognised
Species attributes

Migratory status full migrant Forest dependency does not normally occur in forest
Land-mass type Average mass 12 g
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 28,000,000 km2 medium
Extent of Occurrence (non-breeding) 6,240,000 km2 medium
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size unknown poor - 2009
Population trend increasing - estimated -
Generation length 3.5 years - - -

Population justification: The population has not been quantified.


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Argentina extant native yes
Belize extant native yes
Bolivia extant native yes
Colombia extant native yes
Costa Rica extant native yes
Guatemala extant native yes
Guyana extant native yes
Honduras extant native yes
Mexico extant native yes
Nicaragua extant native yes
Panama 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 Pastureland suitable breeding
Artificial/Terrestrial Pastureland suitable non-breeding
Grassland Subtropical/Tropical High Altitude suitable breeding
Grassland Subtropical/Tropical High Altitude suitable non-breeding
Grassland Subtropical/Tropical Seasonally Wet/Flooded suitable non-breeding
Grassland Subtropical/Tropical Seasonally Wet/Flooded suitable breeding
Grassland Temperate suitable breeding
Grassland Temperate suitable non-breeding
Savanna Dry suitable non-breeding
Savanna Dry suitable breeding
Wetlands (inland) Bogs, Marshes, Swamps, Fens, Peatlands suitable breeding
Wetlands (inland) Bogs, Marshes, Swamps, Fens, Peatlands suitable non-breeding
Altitude 0 - 4000 m Occasional altitudinal limits  

Recommended citation
BirdLife International (2024) Species factsheet: Grass Wren Cistothorus platensis. Downloaded from https://datazone.birdlife.org/species/factsheet/grass-wren-cistothorus-platensis on 23/12/2024.
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 23/12/2024.