Southern Screamer Chauna torquata

  • Order: Anseriformes
  • Family: Anhimidae
  • Monotypic
  • Authors: Serina Brady


Distribution of the Southern Screamer
eBird range map for Southern Screamer

Generated from eBird observations (Year-Round, 1900-present)

Distribution in the Americas

The Southern Screamer occurs from Bolivia south to northern Argentina, and east to Mato Grosso and Rio Grande do Sul, Brazil. Vagrant to southeastern Peru (Parker 1982, Servat and Pearson 1991).

The species is thought to be non-migratory. In Rio Grande do Sul, however, ground and aerial surveys showed seasonal fluctuations in numbers, with populations in coastal areas decreasing at times of year (July-November) when numbers were highest at inland locations, suggesting local movements (Fontana et al. 1994).

Distribution outside the Americas

Endemic to South America.


This species lives in tropical and subtropical wetlands, such as lakes, marshes, and flooded fields and meadows, usually with scattered trees.

Historical changes

No information.

Fossil history

The earliest fossil is from the Pleistocene and it was found in Argentina; the fossil is about 20,000 years old (Carboneras 1992).

Recommended Citation

Brady, S. (2010). Southern Screamer (Chauna torquata), version 1.0. In Neotropical Birds Online (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA.