Austral Rail illustration
Birdsong field guide

Austral Rail

Rallus antarcticus

A small, elusive wetland bird endemic to the southern cone of South America, famously rediscovered in 1998 after being feared extinct for decades.

What it sounds like

A rhythmic, metallic series of 'kek' notes that often accelerate into a rapid, descending trill.

Reference call, compare with what you heard
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Rec. Peter Boesman · ChileCC BY-NC-NDXeno-canto

Field notes

  • It was missing from scientific records for over 40 years until its rediscovery in the Santa Cruz Province of Argentina.
  • Though it resembles a miniature Virginia Rail, it is distinguished by its smaller size and more heavily barred flanks.
  • The species is currently classified as Vulnerable due to the degradation of its specialized wetland habitats by livestock grazing.
  • It is a migratory rail, breeding in the cold marshes of Patagonia and moving north to central Argentina for the winter.
  • Despite its rarity, it can be locally common in specific rush-dominated marshes containing Schoenoplectus californicus.
Habitat
Freshwater marshes, wet meadows, and dense reed beds.
Range
Southern Argentina and Chile, with wintering grounds extending into central Argentina.

Similar & commonly confused birds

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