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80
I. PHYSICAL GEOGRAPHY.
It now remains to cast a glance at the extensive clusters of coast-islets
skirting Sweden. It is principally here that we find the common otter
(Lutra lutra), although it often goes far inland along the watercourses.
The birds which are characteristic both of the eastern and western
coast-islets are, besides the common gull (Lams cairns), which is also found on
inland lakes here and there in the country, the lesser black-backed gull
(Lams fuscus), the herring-gull (Lams argentatus). the great black-backed
gull (Larus marinus), the common tern (Sterna hirundo), and some
of other terns; the "Arctic" skua (Stercorarius parasiticus), the eider
duck (Somateria mollissima), the black guillemot (Uria grylle), the
oyster-catcher (Haematopus ostralegus), the turnstone (Morinella
inter-pres), the ring plover (Aegialitis hiaticula), the sea-eagle
(Haliaë-tus albicilla) — which, however, also breeds far inland ■— the raven
(Corvus corax), and the rock-lark (Antlius obscurus). On the eastern
coast-islets are also seen the razor-bill (Alca tor da) and the velvet-duck
(Oedemia fused), which last also breeds in the lakes of Norrland. There
also live, far out on the coast-islets, a number of birds previously
mentioned, such as the crow and the wagtail. We may besides count among the
inhabitants of the coast-islets the seals, of which one species, the ringed
seal or "floe-rat" (Phoca hispida), is found in the Baltic alone; the two
other Swedish species, the grey seal (Halichoerus gry pus) and the
common seal (Phoca vitulina), also occur on the west coast.
Eagle Orel.
From a painting by Bruno Liljefors.
Finally, the rivers and lakes of Sweden are rich in various fishes, the
greater number of which are edible. These, including the crayfish, which
is also the object of a remunerative fishery, are treated in the article on
the fisheries of Sweden. These waters also contain a wealth of larvae and
of smaller, inferior forms of animal life, principally crustacea of the
en-tomostracan tribe, which is numerous also in the seas surrounding Sweden.
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