The Rook spends the greater part of its life in its native home, often in huge crowds, numbering many thousands, which divide up during the day to seek food in different parts of the neighbourhood. During the breeding time they are divided according to the breeding places. This bird is the most zealous follower of the ploughman, and by its great number destroys an enormous quantity of noxious creatures--the cockchafer being its most coveted delicacy. It covers, with its flocks, the freshly ploughed field, and if they are sown, picks up the grains that are lying about. It bores into the soft earth of the meadows and cornfields, for destructive grubs, and pulls up the withered plants in order to secure the caterpillar or wireworm which has destroyed the roots. This has caused the Rook to be suspected of plundering the fields, but the question has not yet been settled, and the general inclination is in the bird’s favour. The fact is that even in Hungary, where the Rook exists in millions, the people generally are indifferent about it. Early sowing, while there is [Illustration: CHIEFLY USEFUL. THE ROOK. AN OLD AND A YOUNG BIRD.] sufficient insect food for the birds, is the best protection from its mischief, and this is good for the services it performs. A knowledge of the habits of the Rook is important, because the bird is closely associated with husbandry, and with its well organised work deeply affects the interests of the husbandman. While the Hooded Crow roams about the district with the Jackdaw, thousands of Rooks cover the corn-fields; they settle also on fallow ground, on the freshly ploughed field, on the sprouting crops, and on the turnip-field. It is this appearance in vast numbers which mainly distinguishes the Rook from the Hooded Crow, which otherwise its habits closely resemble. In regard to this bird also, different views are held. Whilst the scientific agriculturist considers it useful, the old-fashioned husbandman is convinced that it is harmful. Here again, therefore, must a just verdict be given, between two opposing parties--but this verdict must be impartial. Various things are said of the Rook--but it is not true that it picks the seed out of the earth, so that the spoiled seed has to be ploughed in again. It only takes the seed which has been imperfectly covered by the harrow,--and the reploughing is only an empty complaint, for no one ever heard tell of a particular village, or farm, where reploughing had to be performed on account of the Rooks. The farmer who keeps his eyes open before he gives an opinion knows that the Rook digs his beak into the ground because he hopes to find worms there. Sometimes it is shot, in order to be set up as a scarecrow, but they say nothing of what may be found in its crop, should it be opened; this, however, is just what is necessary in order to ascertain the truth--although the other conditions of its life must also be taken into account.