This elegant species, the _Anas acuta_ of Linnæus, by some modern writers generically distinguished as _Dafila acuta_, is, next to the Wigeon perhaps, the most abundant of the non-diving Ducks upon the coast. Like that bird it visits the British seas in some numbers in autumn, returning north in spring. From the extreme length of the two central upper tail coverts, which project two inches or more beyond the tail, this Duck has been termed the “Sea Pheasant” in some districts, although in others the name is applied to the Long-tailed Duck—a member of the next sub-family. The male is distinguished by his brown head, shot with bronze tints, black nape, and white stripe on either side of the neck, which runs into the white underparts; by the green speculum emphasised above with pale chestnut, and below with white, and finely pencilled black and gray upper plumage: the long pointed black scapulars, broadly edged with dull white, are also a noteworthy feature. The female is much less showily coloured, mottled-brown above, and grayish-white below, but the brown tail feathers, obliquely barred with white, readily distinguish her from allied species. The favourite haunts of the Pintail, during its sojourn with us, are the shallow estuaries, especially on our eastern and southern coasts. It arrives on our coasts chiefly in October and November, and leaves them in April. The Pintail is a remarkably gregarious species, congregating in large flocks during winter, and it has been observed that many of these gatherings are composed exclusively of male birds. It is a shy and wary bird, feeding principally at night, visiting the land or the shallows at dusk, and when so engaged, sentinels are generally on the look-out, ready to give the alarm. It obtains its food by dipping the fore half of the body under water, and exploring the mud with its bill; but sometimes stubbles and meadows near the sea are visited for the purpose. This food consists chiefly of aquatic plants, grass, insects, worms, molluscs, and crustaceans. This Duck swims well and buoyantly, looking very graceful on the water; it rarely dives, even when wounded; whilst on the ground it walks with long neck extended and tail raised. The Pintail flies well and rapidly, the wings making a peculiar and easily recognised swishing sound.