The Megapodes are an ancient and remarkable group of birds that occur only in Australia, Papua New Guinea and the islands that surround them. Within this group, there are 22 species of mound-builders, three of which occur in Australia in dramatically differing habitats: the Scrubfowl lives in the humid tropics; the Brush-Turkey in dense forested areas from Cape York to Sydney; and most remarkable of all, the Malleefowl, which lives in the arid interior...