Helen Moncrieff, Shetland Manager for RSPB Scotland reflects on encounters with the Black Guillemot, or Tystie as they are known locally in Shetland after their piercing whistle. Show more
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Helen Moncrieff, Shetland Manager for RSPB Scotland reflects on encounters with the Black Guillemot, or Tystie as they are known locally in Shetland after their piercing whistle. Show more
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