We have spent the last week exploring the Isle of Mull in Scotland, as part of Nick Garbutt's wildlife tours. Just off the west coast is Lunga one of the Treshnish Isles. It's home to thousands of sea birds. Colonies of Atlantic Puffins, Razorbills, Guillemots, Shags and Kittiwakes nest along the cliffs of the island. It's a hive of activity this time of year. A small group of us were lucky enough to stay on the island until sunset. It was fascinating watching and listening to these amazing birds, who were totally at ease with our presence.