The Marbled Wood-Quail (Odontophorus gujanensis) inhabits from Costa Rica to east Bolivia and central Brazil. Its natural places are in hilly, and wooded areas in lowlands. Its measures are of 25 cm (10 inches) in height and 300 g in weight.
Its crest is dark brown, and sides of head are rusty. Neck and upper back more or less grayish. Upperparts are brown, vermiculated and spotted with black and buff. Below brown and barred with buff and blackish. Bill black and legs gray. This bird eats fallen fruits, insects, and earthworms.