Megapodes are shy terrestrial birds found in hill-valleys, among thickets near rivers or the sea, or on gravelly and sandy beaches. Upon the ground their gait is not ungraceful, while they run well, and only take to the wing when hard pressed; if disturbed they usually seek the lowest branches of the neighbouring trees, hopping gradually to the higher limbs; the flight is heavy, but can carry them from island to island. Always difficult of observation they are rarely seen in company, yet the larger breeding mounds are no doubt used by more pairs than one. Hoarse croaks or clucks are uttered in the day-time, mewing notes or noisy cackles at night; the food consists of fallen fruit, seeds, berries, worms, snails, insects, and even crabs. The brownish-red, salmon-coloured or whitish eggs, at least as large as those of the domestic duck, are deposited either in mounds constructed of soil and vegetable matter, or in holes made in sandy or shingly ground; the decaying vegetation or the sun's heat producing the effect of an artificial incubator, and making parental aid needless. The young extricate themselves readily from the superincumbent soil, being hatched in a feathered condition, and flying almost immediately. The flesh is dark and usually unpalatable. Though mainly confined to the Australian Region, where it extends eastwards to Ninafou and Samoa, the Family reaches westward to the Nicobars, and northward to the Philippines and {192}Ladrones, replacing the Pheasants within these limits–save for the Philippines–just as the Cracidae do in Neotropical countries. No species is yet recorded from Sumatra or Java, and confirmation is needed in the case of the main island of Borneo. _Megacephalon maleo_ of North Celebes and the Sanghir Islands is glossy blackish-brown, with salmon-pink breast and belly, a vaulted tail, a black casque of cellular tissue, and dusky bill and feet. The Maleo, as it is called, inhabits hilly country, but resorts in hundreds to sloping gravelly beaches to breed, holes being scratched or dug just above high-water mark, some four or five feet in diameter. In these from two to eight pale brownish-red eggs are laid, about six inches apart–at intervals, it is said, of a fortnight or so–several females occasionally using one cavity. _Aepypodius bruijni_ of Waigiou is brownish-black, with chestnut rump and breast, dusky bill and feet; a fleshy papillose crest adorns the head, and three wattles–one median and two lateral–occur on the neck, all probably red in life. _Ae. arfakianus_ of New Guinea is black above and brownish below, with no lateral wattles.