According to Mr. Petherick, who, in 1860, first brought the Shoe-beaks to England, they are but rarely seen on the banks of the Nile itself, as these, shelving off more or less abruptly, furnish few favourable spots for indulging their propensities. Although occasionally seen in the Bahr-il-Gagal, they prefer the natural banks of the morasses of the interior, where the shallowness of the water, distributed over a large surface, affords them greater facilities for procuring food. They are usually seen wading about in pairs or parties, and, if disturbed, fly low over the water, and settle at no great distance; but if really terrified, or fired at, they rise in flocks, high into the air, and, after hovering and wheeling around, settle on the highest trees, and as long as their foes are in sight will not return to the water. Their roosting-places at night are said to be on the ground. Their food consists principally of fish and water-snakes, which they have been seen to catch and devour. They will also feed on the intestines of dead animals, the carcases of which they easily rip open with the strong hook of the upper bill. Their breeding-time is in the rainy season, during the months of July and August; and the spot chosen is among reeds or high grass, immediately at the water's edge, or on some small elevated and dry spot, entirely surrounded by water. The bird, before laying, scrapes a hole in the earth, in which, without any lining of grass or feathers, the female deposits her eggs. As many as a dozen have been found in the same nest. "Numbers of these nests," says Mr. Petherick, "have been robbed by my men of both eggs and young; but the young birds so taken invariably died. After repeated unsuccessful attempts to rear them, continued for two years, the eggs were eventually hatched under Hens, which were procured at a considerable distance, from the Raik negroes. As soon as the Hens began to lay, and in due time to sit, a part of their eggs were replaced by half the number of those of the _Balæniceps_, as fresh as possible from the nest, the locality of which was previously known, and several young birds were successfully hatched. These young birds ran about the premises of the camp, and, to the great discomfort of the poor Hens, would persist in performing all sorts of unchicken-like manœuvres with their large beaks and extended wings in a small artificial pool, constantly supplied with water by several negresses retained for their especial benefit. Negro boys were also employed to supply their little pond with live fish, upon which, and occasionally the intestines of animals killed for our use, chopped into small pieces, they were reared." [Illustration: THE WHALE-HEADED STORK, OR SHOE-BEAK (_Balæniceps rex_).] THE SAVAKU, OR BOAT-BILL.