extensive division; some of them may perhaps be regarded as for the most part frequenting woodland districts; others are equally at home upon mountain ranges or lowlands, the sea-coast, or barren plains; and they are constantly met with either in the solitary desert, or dwelling in the immediate vicinity of man. Southern countries, however, afford the most congenial home to these birds, which, though appearing in all latitudes, are more numerous in the warmer portions of the earth than in the north. They live everywhere unmolested by man, obtaining a plentiful supply of food in any circumstances, seeing that their easily satisfied stomachs are equally ready to appropriate all kinds of nourishment. In their conduct the Ravens display an intelligence that cannot fail to interest every observer, and most curious are the means by which they seem to impart and receive hints or suggestions from each other. Some species will assemble at a given hour upon a certain tree, and enter at once, as it would seem, upon a full discussion of the events of the day, the old birds instructing the younger members of the party, who appear to profit by the lessons thus received; superior instinct or talent is sure to find promotion amongst them, the most intelligent being at once recognised as leaders of the rest of the flock. Their habits are social, but each bird may be said to lead an independent life, though ready at a moment's notice to join its companions in defence or attack. The structure of their nests is very various; some are placed apart, and separate from each other; others in close vicinity; the only interruption to the general harmony occurring during the breeding season, when the busy couples are all clamouring and struggling for favourite building places or necessary materials. At such times those who cannot take what they want by force, employ wonderful dexterity and cunning in abstracting the coveted object, should its possessor be for one moment off his guard. The brood consists of from four to six eggs. Both parents assist in the work of incubation, the male stealing occasionally from the side of his mate to pass an hour in chattering or singing with a select party of friends, perched upon some neighbouring tree. The young remain for a considerable time under the care and tuition of their parents, who rarely brood more than once during the summer.