Scotsman: SCOTTISH birds could be wiped out because of rising temperatures that force them northwards in search of a cooler climate, scientists have warned. Birds under threat from climate change include the Scottish crossbill – the only species unique to the British Isles. It currently survives in the remnants of the Caledonian forest in the Highlands, but experts fear it could be wiped out as the warming climate renders its habitat no longer suitable. Research to be published …