Pincoya Storm-Petrel illustration
Birdsong field guide

Pincoya Storm-Petrel

Oceanites pincoyae

A small, enigmatic seabird recently described from the Chilean fjords, distinguished from other storm-petrels by its unique white wing markings and specific habitat preferences.

What it sounds like

Largely silent at sea; vocalizations at nesting sites are currently undocumented.

Reference call, compare with what you heard
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Rec. Fabrice Schmitt · ChileCC BY-NC-SAXeno-canto

Field notes

  • Formally described as a new species in 2013 based on specimens collected in the Seno Reloncaví.
  • Unique among its genus for possessing distinct white patches on the ulnar region of the upperwings.
  • Exhibits a specialized foraging behavior known as 'mouse-running' across the water surface while feeding.
  • Genetic evidence confirms it is a distinct lineage, despite long being overlooked due to its resemblance to Wilson's Storm-Petrel.
  • The exact breeding locations remain one of South American ornithology's great mysteries, suspected to be on remote inland cliffs or islands.
Habitat
Inshore marine waters, specifically protected fjords and sounds.
Range
Seno Reloncaví and the Chiloé Archipelago in southern Chile.

Similar & commonly confused birds

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