always, if possible, making their way thither by water, never, except in cases of urgent necessity, trusting to the dry land. The size of the young Ducks rapidly increases, and they do not learn to fly until they have attained their full growth. Owing to the excellence of their flesh, the chase after these birds is eagerly followed up, and the sportsman is able sometimes to bring down several of them at once, seeing that, if pursued, the young birds always crowd closely together. Occasionally they are taken in considerable numbers by means of decoys. THE RED-HEADED DUCK, DUNBIRD, OR POCHARD. The RED-HEADED DUCK, DUNBIRD, or POCHARD (_Aythya ferina_), one of the best-known representatives of the above group, is of a beautiful brownish red upon the head and fore part of the neck, the front of the breast is black, the back and sides are pure ash-grey, delicately marked with cross lines of black. The under side is greyish white, the region of the vent black; the wing-covers are ash-grey, the wing-spots light grey, and the quills and tail grey. The eye is yellow, the beak black at its base, and the margins elsewhere blueish grey; the foot is greenish grey. In the female the head and neck are reddish greyish brown, marked with an indistinct crescent of dark brown. Her body is whitish grey, and wings ash-grey. The young males in their summer dress resemble the females, but are somewhat brighter in hue, and have the back-feathers of a purer grey. The length of this bird is nineteen inches, its breadth thirty inches, the wing measures nine inches and a half, and the tail two inches and a half. The Red-headed Ducks are winter visitors to Great Britain, appearing in October, and, as a rule, departing in spring. Occasionally a few have been said to remain and breed in Norfolk. These birds do not confine themselves to the sea-coast, but visit inland lakes and rivers. Their note is usually a low whistle, but, when alarmed, they utter a hoarse croak. The nest, which is placed among rushes or coarse herbage, contains from ten to twelve buffish-white eggs; they are about two inches long, and one inch and five-eighths broad. "Although," says Audubon (in speaking of this species, which is numerously met with during winter about New Orleans, East Florida, and Chesapeake Bay), "these Ducks dive much and to a great depth, while in our bays and estuaries, yet when in the shallow ponds of the interior, they are seen dabbling in the mud along the shores, much in the manner of the Mallard; and, on occasionally shooting them there, I have found their stomach crammed with young tadpoles and small water lizards, as well as with blades of grass; nay, on several occasions I have found pretty large acorns and beech-nuts in their throats, as well as snails, entire or broken, and fragments of the shells of several small unios, together with much gravel."