Description: Dark-colored, with a short tail, central band, and white tip; slight nuchal crest; huge wings. The female is more brownish.

Geographic Distribution within Argentina: Salta, Jujuy, Chaco, Formosa, Catamarca, Corrientes, and Tucumán.

Habitat: Yungas and forests.

Diet: Snakes, birds, and small mammals.

Breeding: Enormous nest about 1 meter in diameter made of intertwined branches. Only one egg per clutch, oval-shaped and white.

It is extremely rare throughout its distribution.

Author of this description: Jorge La Grotteria

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