قراءة كتاب British Sea Birds
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along the Welsh coast and in the Solway district. In Scotland it becomes more common, especially among the islands of the west coast, including St. Kilda, and on the north coast to the Orkneys and Shetlands. It is also widely distributed in Ireland, but there, as everywhere else, extremely local, and nowhere, comparatively speaking, numerous. During the non-breeding season it wanders more, and is then seen at many places along the coast. I have seen as many as fifty of these fine birds in Tor Bay, after heavy gales from the eastward. Montagu asserts that this Gull is locally known as a “Cob,” but the term is of pretty general application to the larger Gulls, and, so far as I can learn, has no distinctive significance. In St. Kilda, where I had many opportunities of studying the habits of this Gull, it is regarded with hatred by the natives, owing to its depredations amongst the eggs of the other sea-fowl. In this island it is universally known by the name of “Farspach.” No Gull is more wary, and yet on occasion none are bolder and more daring. I have seen a bird of this species tear to pieces a Puffin I had shot as it floated upon the sea, and that in spite of several shots I had at it with a rifle. It is a sad robber of the other and more weakly Gulls, not only pillaging their nests at every opportunity, but chasing them, and making them relinquish bits of food they may chance to pick up within view. Like the Raven and the Crow, it seems fully conscious of its marauding misdeeds, and correspondingly artful, as if always instinctively fearing that treatment it metes out so lavishly to creatures more helpless than itself.
The Great Black-backed Gull is one of the least gregarious of the family, and the large gatherings of this species that are sometimes witnessed are chiefly due to such accidental causes as an unwonted supply of food, or a continued spell of boisterous weather, which often drives Gulls in thousands into sheltered bays and estuaries. This Gull is generally met with beating about in a solitary manner; less frequently three or four may be seen together; whilst even in the breeding season, when most Gulls congregate into colonies whose size seems only to be regulated by the accommodation presented, it is certainly the least sociable of all the British species. It is a great nomad during the non-breeding season, often wandering far from land, resting and sleeping on the sea. On the other hand, it is one of the least frequent visitors of the Gull-tribe to inland districts, and, as its specific name of marinus indicates, is closely attached to the sea. The usual call-note of this fine Gull is a loud, whining, oft-repeated ag-ag-ag. Notwithstanding the purity of its plumage, and the magnificence of its presence, the Great Black-backed Gull is almost as unclean in its habits as the Raven or the Vulture. No kind of carrion is refused, either lying on the shore or floating on the sea—weakly, death-stricken lambs or wounded birds, eggs or chicks left unguarded by their owners, fish basking or sleeping near the surface, offal cast from the fishing boats or quays, animal refuse of all kinds, form the prey of this Gull.
The usual breeding place of this Gull is the top of an isolated rock stack, a little distance from the mainland; less frequently it selects a range of high cliffs overhanging the sea. A small island in a mountain loch is sometimes selected, and occasionally this may be some considerable distance inland. In a few chosen spots the birds nest in such close, if somewhat scattered proximity, that we might call it a colony, but the rule is for odd and more or less isolated pairs to be met with, and often at considerable distances apart. The fact that this Gull may be found nesting in one chosen spot year by year, warrants the supposition that it may pair for life. The usually scanty nest is made in a hollow amongst the short turf, or heath, or on the flat ledge of a precipice. Sometimes the eggs are laid in a bare hollow amongst the rocks. It is formed of grass, dry sea-weed, twigs, and stalks of marine plants, and occasionally a tuft of wool or a few odd feathers are placed in the lining. The eggs are usually three in number, but sometimes only two, or even one. They are grayish-brown, or brown sometimes tinged with olive in ground colour, spotted with dark umber-brown and brownish-gray. This Gull is a very light sitter, but is bold and clamorous when disturbed from the nest.
LESSER BLACK-BACKED GULL.
Very similar in appearance, but much smaller in size—it is only about half the weight—this pretty Gull, the Larus fuscus of Linnæus, is one of the most familiar birds of the coast, especially in the more northerly portions of the British Islands. It is a more trustful species than its larger ally, admits man to approach it with less show of fear or wariness, and may often be seen on the meadows and ploughed fields near the sea, seeking for its food as familiarly as a Rook or a Daw. Singularly enough, the east and south coasts of England are not resorted to by this Gull for breeding purposes. It is not known to breed south of the coast of Northumberland, or east of that of Devonshire; and this is all the more remarkable, seeing that one of its most important colonies in our area is situated upon the Farne Islands. It breeds locally from Cornwall to the Solway, but further northwards becomes more generally dispersed, right up to the Orkneys and the Shetlands. In Ireland, again, this Gull is a very local breeder, and is only known to nest in one or two localities. During the non-breeding season it wanders far from home, and may then be met with on and off most of the British coasts: young and immature birds do not resort much to the nesting colonies, but roam widely at all seasons. It is a very remarkable fact that adult Gulls of this species are so rarely seen near Heligoland, as the species breeds commonly on the Baltic and Scandinavian coasts, and yet its average appearance at the island is about once in ten years! The Heligolandish name for this Gull is very appropriate, signifying “little mantle wearer,” and refers to the dark slate-gray mantle. Unlike its larger ally the present species is very gregarious, and socially inclined at all seasons, mixing freely not only with its own kind, but with the Herring Gull and the smaller forms, such as the Kittiwake, and the Common Gull. These latter birds, however, must too often prefer its room to its company, for it repeatedly robs them of their prey, and is, Gull-like, ever ready to profit by the labours of its weaker congeners. Like the preceding species it is almost omnivorous in its tastes, and will as readily make a meal from stranded garbage on the shore, as from the living fish it deftly swoops upon as they swim near the surface. On the Lincolnshire coasts it visits the flight nets, in company with the Hooded Crows, and preys upon any birds that may be entangled in them. It is also a persistent follower of ships, attending the trawlers, and feeding upon the refuse fish cast overboard when the trawl net is emptied. It swims lightly enough even on a rough sea, riding like a cork on the wave-crests, and sleeps upon the water, when roaming far from land. Flocks of this Gull may often be seen standing upon the mud-flats or level sandy reaches, preening their plumage, and waiting, it may be, for a turn of the tide that may bring some particular food of which they are in quest. It will be remarked that these larger Gulls, especially, often run for a short distance before taking flight, and that when alighting they frequently keep their long wings unfolded and erect for a moment or two before finally closing them. Great numbers of Lesser Black-backed Gulls and