In our country it never makes a nest for itself, but it takes possession of one that has been built by a Crow, Magpie or other bird, in a tree. The female has a curious habit of brooding on an empty nest or upon eggs of the Kestrel before she lays her own. In autumn it leaves the woodlands to take to the open country. Cowley wrote: “Like larks when they the tyrant hobby spy, Some wonderstrook, stand fix’d, some fly.” And Dryden: “Larks lie dar’d to shun the hobbies’ flight.” The Hobby is as big as a small pigeon, but has a slenderer body. The tip of the wing reaches to the end of the tail or even beyond it. Legs and cere are yellow. The eyes are dark brown, with a keen expression. The serrated bill is yellowish at its base, but black at the tip, which is strongly curved. The back is slate-coloured, while breast and belly are marked with black longitudinal stripes on a light ground. The Hobby builds its nest in the tops of high trees in small woods. The eggs number three or four, and are marked with thick rusty-brown spots and streaks on a ground-colour of pale buff. [Illustration: USEFUL. THE KESTREL.] THE KESTREL. (_Falco tinnúnculus._) The Kestrel also has a beautiful flight; but it is not able to catch small birds when on the wing. It is a master in the art of remaining in one spot in the air, with a very slight apparent motion of the wings. It stops suddenly in its flight at about the height of an ordinary church tower, bends its spread tail stiffly downwards and beats rapidly with its wings. It often poises itself in this way over meadows, cornfields and moorlands, and marks with its brown, sharp eyes any mouse or marmot that slips out of its hole. Sometimes it finds a brood of young birds, and these it does not spare. Crickets, grasshoppers and lizards also fall a prey to this hunter, but mice form its chief diet, and for this reason the bird is useful. When it has caught sight of its prey from a height in the air it suddenly closes its wings and drops, but when quite near the ground it spreads them again, and thus picks up its victim. It eats the smaller insects out of its claws while flying; but larger prey it carries to a quiet spot. Its twittering cry is often heard; it sounds like “_Klee, klee, klee_.” It leaves Hungary in severe winters. The Kestrel is the most numerous of the birds of prey in that country, where it is quite at home, even in the rush and noise of towns. * * * * *