The islands are the home of a large number of birds, including terns, gannets and white egrets, though most of the indigenous species are extinct.
On a clear day you can see Scare Rocks in Luce Bay, home to thousands of pairs of nesting gannets.
gannets also seen feeding in these areas is a good indication that herring are in good supply.
gannets passed by.
Setting up our scopes we were soon watching gannets of various ages moving off shore.