There is evidence that the distinctive call of those corn buntings in the Western Isles is disappearing. There are, apparently, only 76 territorial males of the variety in that part of Britain and they have to vary the sounds they make as they seek females from further afield. Read about the research undertaken by a team from Aberystwyth University on the BBC website.
Scottish Islands Explorer - no variations in its call sign of 'read me'
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