Puna Ibis illustration
Birdsong field guide

Puna Ibis

Plegadis ridgwayi

A high-altitude specialist of the Andes, the Puna Ibis is a gregarious wading bird recognized by its dark, iridescent plumage and long, decurved bill. It is the high-elevation ecological counterpart to the more widespread Glossy Ibis.

What it sounds like

Typically silent, but emits low, nasal grunts or harsh, rhythmic croaks when in flight or at nesting colonies.

Reference call, compare with what you heard
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Rec. Andrew Spencer · PeruCC BY-NC-NDXeno-canto

Field notes

  • It is primarily found at extreme elevations, typically residing between 3,500 and 4,800 meters in the Altiplano.
  • While mostly sedentary, some populations exhibit altitudinal migration, descending to coastal marshes during harsh winters.
  • The bare facial skin between the eye and the bill turns a brighter red or pinkish-red during the peak breeding season.
  • They are highly social birds that forage in large flocks, often intermingling with Andean Geese and other waterfowl.
  • Unlike many other ibises, they frequently nest on steep rocky ledges or cliffs in addition to traditional reed beds.
Habitat
Andean wetlands, including 'bofedales' (cushion bogs), lake margins, and flooded high-altitude grasslands.
Range
The Andes mountains of Peru, Bolivia, northern Chile, and northwestern Argentina.

Similar & commonly confused birds

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