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LC
Sedge Wren Cistothorus platensis

IUCN Red List history

Year Category
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 Does not normally occur in forest
Land mass type   Average mass 11.8 g

Distribution

  Estimate Data quality
Extent of Occurrence breeding/resident (km2) 6,240,000 medium
Extent of Occurrence non-breeding (km2) 6,240,000 medium
Number of locations -
Fragmentation -

Population & trend

  Estimate Data quality Derivation Year of estimate
No. of mature individuals poor Estimated 2009
Population trend Increasing -
Number of subpopulations - - -
Largest subpopulation - - -
Generation length (yrs) 3.5 - - -
Trend justification: This species has undergone a large and statistically significant increase over the last 40 years in North America (85.6% increase over 40 years, equating to a 16.7% increase per decade; data from Breeding Bird Survey and/or Christmas Bird Count: Butcher a.

Country/Territory distribution

Country/Territory Occurrence status Presence Breeding Non-breeding Passage Resident
Argentina Native Extant        
Belize Native Extant        
Bolivia Native Extant        
Brazil Native Extant        
Canada Native Extant Yes      
Chile Native Extant        
Colombia Native Extant        
Costa Rica Native Extant        
Ecuador Native Extant        
El Salvador Native Extant        
Falkland Islands (Malvinas) Native Extant        
Guatemala Native Extant        
Guyana Native Extant        
Honduras Unknown Extant        
Mexico Native Extant        
Nicaragua Native Extant        
Panama Native Extant        
Paraguay Native Extant Yes      
Peru Native Extant        
South Georgia & the South Sandwich Islands Native Extant        
Uruguay Native Extant Yes      
USA Native Extant Yes      
Venezuela Native Extant        

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 breeding
Grassland Subtropical/Tropical Seasonally Wet/Flooded suitable non-breeding
Grassland Temperate suitable breeding
Grassland Temperate suitable non-breeding
Savanna Dry suitable breeding
Savanna Dry suitable non-breeding
Wetlands (inland) Bogs, Marshes, Swamps, Fens, Peatlands suitable breeding
Wetlands (inland) Bogs, Marshes, Swamps, Fens, Peatlands suitable non-breeding
Altitude 0 - 4600 m Occasional altitudinal limits  

Recommended citation
BirdLife International (2014) Species factsheet: Cistothorus platensis. Downloaded from http://www.birdlife.org on 22/12/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 22/12/2014.

This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.

To provide new information to update this factsheet or to correct any errors, please email BirdLife

To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.

Key facts
Current IUCN Red List category Least Concern
Family Troglodytidae (Wrens)
Species name author (Latham, 1790)
Population size mature individuals
Population trend Increasing
Distribution size (breeding/resident) 6,240,000 km2
Country endemic? No
Links to further information
- Summary information on this species