The clutch of eggs numbers five to six. They are of a yellowish-white ground-colour, with spots and marblings, some darker, some lighter. The nest structure is scanty, and is seldom built by the bird itself; it appropriates the old nest of a Crow, Magpie or Rook. The male of this species is for the most part slate-grey in colour, the thighs and under side of the tail are bright chestnut-red. The iris and the feet are red. The colouring of the female is more diversified. The mantle is bluish-grey, with blackish stripes, like those on the tail; the sides of the belly are light rusty-brown, throat and nape white. The forehead is whitish; top of the head rust-coloured, legs and feet reddish. The claws are nearly white. THE COMMON BUZZARD. (_Búteo vulgáris._) This bird is equally at home in the plains and in the highlands. It goes South in the winter, except in mild seasons. Like the Kite it soars to a great height with a fine sweeping movement, crying “_keo-keo_.” It descends and with an easy stroke hovers near the ground, from which it seizes frogs, lizards, and even poisonous snakes; but besides marmots, moles, rats, and leverets, its chief diet is mice, of which it requires 20 to 30 for one good meal. It usually perches on a hayrick, a post, or a dry tree to watch for its prey, sitting motionless save for a movement of its head from side to side, until a mouse emerges from its hole. Then it raises its wings, darts downwards, and secures the booty. In years when a superabundance of mice appear, the Buzzards also are numerous, and fare plenteously. At such times, hundreds of tufts of mouse-hair are found beneath the trees where the Buzzards spend the night. It would be a good thing if the farmer were to set up perching posts in the places which are infested by mice, so that the Buzzards might settle on them to watch the ground. Posts about the height of a man, and the thickness of an arm, with a cross piece at the top, would perfectly serve the purpose. The Buzzard, then, is useful; but it cannot be denied that it sometimes does harm when it gets into a pheasant run, or places where partridges and hares are preserved. The bird is still common in Hungary. [Illustration: USEFUL. THE COMMON BUZZARD.]