Telegraph: Mass nesting failure year after year is threatening the future of world famous spectacular seabird colonies – and climate change could be the cause. The warning signs may not be apparent to the tourists enjoying views of kittiwakes, guillemots and puffins on the cliffs of Sumburgh Head at the southern tip of Scotland’s Shetland Isles or at remote Fair Isle, 25 miles out to sea. “Wildlife is a major reason why people take holidays on Shetland and during a short visit …