A large and strange bird. It is found near freshwater swamps and rivers in the lowlands of the Amazon. It is mostly dark gray and black, with white scales on its neck and a white belly. Its name refers to the distinctive, unicorn-like appendage on the top of its head. It walks along riverbanks and perches on vegetation near the water, sometimes quite high. Its call can be heard from great distances: a deep, flutelike “ha-moo-cu,” often emitted in a duet.
Order: Anseriformes | Family: Anhimidae
Scientific name: Anhima cornuta
Common name: Aruco, Horned Screamer
Conservation status: Least concern (LC)
Best season for horned screamer: All year round
Identification
It is a large bird that is easily recognized by its size, the white spiny appendage on its head, its carpal spurs, and its large gray legs. Its plumage is mainly black with white feathers on the head, as well as a white belly, white or tan spots on the wings, and white feathers around the neck. The iris ranges from yellow to orange, and the bill is deep black.
Distribution
The distribution area of the Aruco includes Brazil, Bolivia, Venezuela, Ecuador, French Guiana, Guyana, Paraguay, Peru, Suriname, and Colombia (Los Llanos).
Habitat
It is found in freshwater lagoons, tropical humid savannas, swamps, marshes, and grasslands near rivers and lakes in open or forested areas. It is common along riverbanks. It has also been reported in disturbed habitats such as agroforestry systems, cattle pastures, and rice fields.
