Sea-Birds. James Fisher. Читать онлайн. Newlib. NEWLIB.NET

Автор: James Fisher
Издательство: HarperCollins
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Жанр произведения: Природа и животные
Год издания: 0
isbn: 9780007406258
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inhabited by great auks. After the volcanic disturbance the garefowls went for as long as they were spared to the island of Eldey, almost exactly between Geirfuglasker and Cape Reykjanes.

      It would seem from the accounts of Ólafsson (1772) and Olavius (1780) that Hvalbakur, the distant whale-back skerry of east Iceland, may have been inhabited by great auks when those historians were in Iceland (between 1752 and 1777); but when N. Mohr (1786) visited nearby Djúpivogur in 1781 he evidently found no news of occupation in that year. If it was true, as Ólafsson thought, that Tvísker (a skerry which at present slopes up to a height of about 46 ft.), was a breeding-place, its occupation must be put before 1764, the last year he was in Iceland; there is no subsequent history here. In the eighteenth century the Westmann islet of Geirfuglasker (which rises to 190 ft., but, as we have seen, has a low platform on one side and low skerries around), had a big colony but, as Friedrich Faber (1822), records, the last known breeding-pair and egg were seen there in about 1800.

      The end of the great auk in Iceland, and in the world, took place south-west of Cape Reykjanes. It seems probable that the great auks nested only on Geirfuglasker and afterwards Eldey, and never on the satellite stacks belonging to these rocks—Geirfugladrangur and Eldey-ardrangur. It was known that great auks occupied Geirfuglasker, and were at least occasionally raided by Man, in the first half of the seventeenth century. Though the accounts of the eighteenth century (e.g. J. Anderson, 1746; N. Horrebow, 1752) sometimes slightly conflict it seems clear that Geirfuglasker was occupied in 1729 and that in some years of the first half of that century (if not, perhaps, in that particular year) its great auk population was a “great multitude.” Nevertheless, it could have been exaggerated. Horrebow stated that at his time the Geirfuglasker fowlers “filled their boats with the eggs of the Garefowl.” (All through the early, uncritical literature of fowling we find boatloads of eggs—they have even been allegedly taken from Rockall, where seldom have more than a couple of dozen guillemots been seen in attitudes of incubation.) But a manuscript of c.1760 (S. Grieve, 1885, p.19) states that the “garefowl is there not nearly so much as men suppose … the space he occupies cannot be reckoned at more than a sixteenth part of the skerry … and this only at the two landing-places; further upwards he does not betake himself, on account of his flightlessness.” Mohr, who visited Iceland in 1780–81, also thought Horrebow’s account exaggerated, though he did not go out to the skerry himself.

      In the nineteenth century the doom of the auks was sealed by the raid of the Salamine, a private pirate-ship which had plundered Tór-shavn in the Faeroes on its way north. The crew of this ship was ashore on Geirfuglasker on (it is said) 8 August (? a late date) 1808, and killed many birds and their young. There may have been another raid from the Faeroes in 1809 (H. C. Müller, 1862); there was certainly a big one in 1813, when, during the war between Britain and Denmark, the armed schooner Faeroe landed a party which killed all garefowls that came within their reach, and arrived later in Reykjavik with twenty-four on board, besides numbers that had been salted down; fifty or sixty were taken back to the Faeroes. On 1 July 1821 Friedrich Faber and H. C. Raben visited Geirfuglasker, and Raben actually climbed Geirfugladrangur. They saw no garefowls at all: it is possible that the auks might have already gone to sea (especially if their eggs had already been taken that season). In 1828 at least one adult was taken, for a skin for the Copenhagen Museum. This is the last visit to Geirfuglasker that we hear of; in early March 1830 a series of earthquakes took place in which the skerry sank beneath the sea. The great auks moved at once to Eldey, ten miles nearer the coast, and attempted to breed there in the same season.

      Eldey is a remarkable block of volcanic tuff with sheer sides and a flattish top that is distinguished by being the site of the second largest gannetry in the world (see here). It is about 250 feet high, at its highest point. On the east side of its north end, below the cliff, is a broadish ledge which slopes and slants into the sea (Pl. IIa), and, as one of us (Fisher) who visited it in 1949 saw for himself, was a suitable landing place and, under the sheer cliff, also a suitable nesting-place for the garefowls. Eldey is made of a particularly resistant type of volcanic tuff; normally such a formation weathers and erodes easily, but Eldey has not significantly changed in a century,* and the Icelanders, who are sensitive to tradition and history, and whose fowlers work with their fathers and sons, are positive that the garefowl ledge is still as it was. It was certainly easy, in 1949, to imagine the great razorbills bobbing buoyantly in the fuss of spray and breakers round the landing-places, clawing a foothold and waddling and struggling clumsily ashore. But they only did this at Eldey for fifteen years. In the first year, the year of the earthquake 1830, two boats took twenty or twenty-one skins for dealers; in 1831 twenty-four were taken; in 1834 at least nine skins and several eggs; in 1840 at least one egg; in 1841 three skins and one egg (the egg was probably laid by a female which laid an egg taken in 1840, judging by their remarkable similarity). On a day between the second and fifth (most probably the fourth) day of June 1844 a boat of fourteen men, under the leadership of Vilhjálmur Hákonarsson, sailed the fourteen miles from Kirkjuvogur to Eldey; the sea was rough, and only three men could get ashore, Sigurður Íslefsson, Jón Brandsson and Ketil Ketilsson. They found two garefowls and an egg. Ketilsson smashed the egg, because it was already cracked, and the others each caught and killed an auk. On their way home the men sold the skins to a certain Christian Hansen, who sold them to the bird-stuffer at Reykjavik, Möller. Since that day no great auk has been certainly seen alive by anybody, anywhere.

      There is only one other place at which the great auk has been suspected to have bred; it is certainly the most remote and romantic of the lot—romantic because it is the first place in the New World to have been seen by an European. In 877 a Norwegian, Gunnbjörn Ulfsson, on his way to Iceland to settle, was driven west past Iceland by storms, to some skerries, beyond which was land. The land was the the east coast of Greenland, and the skerries, once thought to be what are known as Graah’s Islands, at about the same latitude as the Snæfell Peninsula of Iceland, and now thought (G. Holm, 1918) to be Leif’s and Erik den Røde’s Islands north-east of Angmagssalik. It was from Snæfellsnes that Erik the Red set sail in 982 to found the first European colony in the New World—and he navigated west to Gunnbjörn’s skerries on his way. In the old sailing directions they are regarded as “midway between ‘Greenland’ (the Norse colonies in S.W. Greenland) and Iceland”; which is correct. Many fishermen and voyagers to Greenland after Gunnbjörn and Erik sailed to, or by, Gunnbjörn’s skerries, and in the twelfth or thirteenth century at least one such voyager, according to the M.S. sagas of Iceland (Anon., 1838, W. Preyer, 1862), discovered a great multitude of great auks on them. Between 1586 and 1596 the fisherman Látra Clemens from Adalsvík in Iceland is said to have taken a ‘boatload’ of garefowls here. There is no later record of great auks at this place,* and it may have become too ice-bound with the deterioration of climate at about that time.

      The end of the great auk was the only extinction in historical times of a primary North Atlantic seabird; but a secondary sea-bird, the Labrador duck, followed it in 1875 or 1878. Man the ignorant killer was again the agent of its death, armed this time with a shotgun. The evidence against him, in this particular case, is circumstantial; for nobody