"It is pleasing," writes Bennett, "to observe this superb bird sailing in the air in graceful and elegant movements, seemingly excited by some invisible power, for there is rarely any movement of the wings seen after the first and frequent impulses given when the creature elevates itself in the air; rising and falling without any muscular exertion of its own, and then descending, sweeps the air close to the stern of the ship with an independence of manner as if he were monarch of all he surveyed. It is from the very little muscular exertion used by these birds that they are capable of sustaining such long flights without repose. When seizing an object floating on the water, they gradually descend with expanded or upraised wings, or sometimes alight and float like a Duck on the water while devouring their food; then elevating themselves, they skim the ocean with expanded wings, giving frequent impulses, as the great length of their wings prevents their rising with facility from a level surface, as they run along for some distance until they again soar in mid-air, and recommence their erratic flights." Like other species of the genus, this Albatross is nocturnal as well as diurnal in its habits; no bird takes so little repose; indeed, it appears to be constantly on the wing, scanning the surface of the ocean for the molluscs, medusæ, and other marine animals that constitute its food. The Wandering Albatross breeds in the rocky islands of the Southern Ocean during the months of November and December. The grass-covered declivities of the hills, above thickets of wood, are the spots usually selected for its nest, which consists of a mound of earth intermingled with grass and leaves. The nest is about eighteen inches high and six feet in circumference at its base, whilst the opening at the top is about twenty-seven inches in diameter. The eggs are white, and from fourteen and a half to nineteen ounces in weight. "The Albatross," says Dr. McCormick, "frequently sleeps with its head under its wing during the period of incubation, its beautiful white head and neck above the grass betraying its situation from a considerable distance. If approached, it resolutely defends its egg, and if forced off the nest, slowly moves away to a short distance, but does not take wing. A fierce species of _Lestris_ watches keenly for any opportunity of seizing the eggs, and so well aware is the Albatross of its hostile intentions, that he snaps his beak violently whenever he observes the _Lestris_ overhead." The female usually lays but one egg; the young bird is entirely white, and covered with a beautiful woolly down. THE YELLOW-BILLED ALBATROSS. The YELLOW-BILLED ALBATROSS (_Diomedea chlororhynchus_) is smaller than the above species. In the adult birds the plumage is principally white with brownish black rump and wings of the same colour; the tail-feathers are brownish grey shafted with white; the bill is black with orange-red culmen.