Giant coot coot, the giant coot is monogamous and the pair builds a huge nest in a highland lake. However, unlike the horned coot, the nest of the giant coot is primarily made of aquatic vegetation and – as it is fiercely territorial – it never forms colonies. Giant coot The giant coot ("Fulica gigantea") is a species of coot from South America. It is found at lakes in the altiplano from central Peru, through western Bolivia, to north-eastern Chile and extreme north-western Argentina. With a total length of 48–64 cm (19–25 in), it is the second largest extant member of the
Horned coot is generally a low-density species and the total population has been estimated at 10,000–20,000, with as few as 620 in the Chilean part of its range. Consequently, it is considered to be near threatened by BirdLife International and IUCN. Horned coot The horned coot ("Fulica cornuta") is a species of bird found in the Andes of South America. It was described by Bonaparte in 1853 based on a specimen collected in Bolivia. For a long time it was known only from the type specimen. Horned coot males average a little larger than the female. With a total length of 46–62