We have seen a variety of this bird, of which the head and neck were of a yellowish white; the rest of the body was nearly of the same colour, mixed with a few brown feathers; the spots on the breast were faint and indistinct: the quill feathers were perfectly white, except one or two on each side, which were brown; the tail was marked in a similar manner. The field-fare is only a visitant in this island, making its appearance about the beginning of October, in order to avoid the rigorous winters of the north, whence it sometimes comes in great flocks, according to the severity of the season, and leaves us about the latter end of February or the beginning of March, and retires to Russia, Sweden, Norway, and as far as Siberia and Kamtschatka. Buffon observes that they do not arrive in France till the beginning of December, that they assemble in flocks of two or three thousand, and feed on ripe crevises, of which they are extremely fond; during the winter they feed on haws and other berries; they likewise eat worms, snails, and slugs. Field-fares seem of a more sociable disposition than the throstles or the missels: they are sometimes seen singly, but in general form very numerous flocks, and fly in a body; and though they often spread themselves through the fields in search of food, they seldom lose sight of each other, but, when alarmed, fly off, and collect together upon the same tree.—_Bewick._ FIELDMOUSE, _s._ A mouse that burrows in banks. An extraordinary instance of the rapid increase of mice, and of the injury they sometimes do, occurred a few years ago in the new plantations made by order of the crown in Dean Forest, Gloucestershire, and in the New Forest, Hampshire. Soon after the formation of these plantations, a sudden and rapid increase of mice took place in them, which threatened destruction to the whole of the young plants. Vast numbers of these were killed,—the mice having eaten through the roots of five-year-old oaks and chestnuts, generally just below the surface of the ground. Hollies also, which were five and six feet high, were barked round the bottom; and in some instances the mice had crawled up the tree, and were seen feeding on the bark of the upper branches. * * * * * The following account will show the numbers of mice caught in the different inclosures in Dean Forest in three months, from September to January, with the number of acres, and the proportion between the long and the short-tailed mice.