The Guianan cock-of-the-rock ("Rupicola rupicola") is a species of cotinga, a passerine bird from South America. It is about in length and weighs about . It is found in tropical rainforests, near its preferred habitat of rocky outcrops. The female's plumage is brownish / dark smokey grey in colour, and generally less noticeable coloured than the males because of their nesting work in rocky areas. The male's feathers are a bright orange. Both have a heavy body, broad based bill and wear a remarkable half-moon crest on the head. It is one of two species of the genus "Rupicola", the other being the Andean cock-of-the-rock. The Guianan cock-of-the-rock lives across the forested region of northeastern South America. Its diet consists mostly of fruit, but sometimes includes small snakes and lizards.