 In the modern era avian life includes the corncrake , red @-@ throated diver , kittiwake , tystie , Atlantic puffin , goldeneye and golden eagle . The eggs of the last breeding pair of white @-@ tailed sea eagle in the UK were taken by an egg collector on Skye in 1916 but the species has recently been re @-@ introduced . The chough last bred on the island in 1900 . Mountain hare ( apparently absent in the 18th century ) and rabbit are now abundant and preyed upon by wild cat and pine marten . The rich fresh water streams contain brown trout , Atlantic salmon and water shrew . Offshore the edible crab and edible oyster are also found , the latter especially in the Sound of Scalpay . There are nationally important horse mussel and brittlestar beds in the sea lochs and in 2012 a bed of 100 million flame shells was found during a survey of Loch Alsh . Grey Seals can be seen off the Southern coast . 
