The herring-gull, which derives its name from its habit of following the shoals of herrings, is common on our coasts throughout the year. Like most gulls, it searches the shore at ebb-tide for stranded marine animals, dead and alive, and garbage of all kinds. It quarrels with ravens and crows over the carcass of a dead sheep, and, like the raven, is a plunderer of eggs and young birds from the cliffs. It is often seen at a distance from the sea, roaming over the moors in search of prey or carrion; and it also feeds on insects and, like the black-headed gull, sometimes follows the plough to pick up worms and grubs. It nests on precipitous, rocky shores, usually making choice of the summit or upper ledges. It also breeds on flat islands, sometimes in company with the lesser black-backed gull, which it resembles in size and general appearance. It usually breeds in communities, but is not so strictly gregarious as most gulls at this season. The nest, which is usually somewhat bulky, is composed of seaweed and herbage, and lined with dry grass. Three eggs are laid, stone-colour or light olive-brown, spotted and blotched with dark umber. Lesser Black-backed Gull. Larus fuscus. Bill, legs, and feet yellow; summer plumage of the adult white, except on the mantle, which varies from slate-grey to black. Length, twenty-three inches. * * * * * From its abundance, its large size--which is nearly the same as that of the herring-gull--and its extremely conspicuous black-and-white plumage at maturity, the lesser black-back is one of the most familiar birds on our coasts. The young differ greatly from the adults, having a slate-grey beak, flesh-coloured legs, and a general brown plumage. The mature breeding colours, including yellow on legs and bill, with a vermilion patch on the lower mandible, are not perfect until the fourth year. Judging solely from this fact of its slow growth to maturity, we may take it that the lesser black-back lives long--that its natural term, as in some accipitrine species, probably exceeds a century. It is certainly the case that this gull is able, not only to keep itself alive, but to keep up its numbers, notwithstanding its large size and the dislike with which it is regarded on account of its predacious habits. The unfeathered biped is ever anxious to keep all the killing and plundering in his own hands. The voice of this gull is very powerful and far-reaching, and, when soaring with its fellows, occasionally all the birds unite their voices in a chorus of short and long cries, laughter-like in character, yet with something solemn, and even desolate, in the sound, as of the sea. It is gregarious and social at all seasons, and breeds in gulleries, where the nests are placed close together on the level ground. The three eggs are of a light stone colour, spotted and blotched with blackish brown and grey.