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  3. Giant Coot
Giant Coot (Fulica gigantea)

Birds · Gruiformes · Rallidae

Giant Coot

Fulica gigantea

Least Concern

The species is abundant and widely distributed; it faces no significant short-term risk.

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The giant coot is the largest coot in the world and lives in the lagoons of the high Andean puna, above 3,000 metres and up to almost 5,000. It builds spectacular floating nests: platforms of aquatic vegetation more than a metre across and weighing several hundred kilos, anchored to the bottom, which the pair maintains and enlarges throughout the season.

Weight

2 kg – 2.5 kg

Size

48 cm – 64 cm

Life expectancy

15 years

Diet

Herbivore

Feeds mainly on plants.

Activity

Diurnal

Active mainly during the day.

Social structure

In pairs

Usually lives in pairs, sometimes for life.

Sighting difficulty

Easy

MountainFreshwater
4countries1parks9same family

AI-generated images: illustrations, not photographs.

Fun facts

  • It is the second largest of all living rails, behind only the New Zealand takahē, which is also in this catalogue.
  • It belongs to the subfamily Rallinae within Rallidae, alongside rails, moorhens and coots.
  • It was described in 1841 by the French naturalists Eydoux and Souleyet.
  • Its floating nest can weigh several hundred kilos: a platform of aquatic vegetation more than a metre across that the pair builds and anchors to the bottom of the lagoon, and that a person can walk on.
  • It lives in lagoons above 4,000 metres, where the water freezes overnight: it is one of the highest-living waterbirds on the planet.
  • Adults are all but unable to fly because of their weight and only do so as a last resort, running long stretches across the water to take off.

Life cycle and biology

Skeleton type
Vertebrate - internal bony skeleton (bird)
Habitat and environment
High Andean lagoons with aquatic vegetation, between 3,000 and 6,000 m
Sexual maturity
2 years
Gestation / incubation
25 days of incubation
Litter / clutch size
3 eggs

Sources consulted: IUCN Red List 2016 (e.T22692943A93375413); IOC World Bird List v12.2 (2022); HBW y BirdLife International 2021, digital checklist v6; Eydoux y Souleyet 1841

Where to find it

Best time: All year round on the high Andean lagoons

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The pins mark the parks where its presence is documented.

Where to see it

Parks and dive sites where this species has been documented.

Related species

Other species in the catalogue with the most in common with Giant Coot — same habitat, park, country, tags or family.

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Based on what we already know about giant coot.

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See full glossary
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CountriesChile
ParksLaucaChile
TagsHerbivore
Herbivore
Diurnal
In pairs
Bird
Mountain
Freshwater
Chile
Argentina
Bolivia
Peru