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Raven, Brough of Birsay, Orkney
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191
Orkney - Birsay
Raven (Corvus corax) on the overhanging cliffs of the Brough of Birsay, Orkney
17 May 2014
Brough of Birsay, Orkney
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191
Orkney - Birsay
Brough of Birsay, Orkney. Here you can see Old Red Sandstone lake-deposited sediments of the middle Devonian period dipping steeply westwards into the sea.
17 May 2014
Geo, Brough of Birsay, Orkney
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191
Orkney - Birsay
A narrow parallel-sided cliff inlet, known as a geo, Brough of Birsay, Orkney. It looks like a dyke has been intruded into the Old Red Sandstone country rock, forming a weakness which has been exploited by the erosive power of the sea. You can see the thermally metamorphosed sediments on both sides of the dyke, with joints parallel to the dyke and at right angles to the country rock. In the foreground is a boulder beach thrown up by storms. The large scale of this feature can be seen by the people in the top right of the picture.
17 May 2014
Common Guillemots, Brough of Birsay, Orkney
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191
Orkney - Birsay
Common Guillemots (Uria aalge) on the cliffs of the Brough of Birsay, Orkney. Although there are still many Guillemots, there are also many empty spaces on ledges where Guillemots would have nested in the past, but Guillemot numbers are declining due to lack of food, and they are now on the Amber list of Birds of Conservation Concern.
17 May 2014
Common Guillemots, Brough of Birsay, Orkney
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191
Orkney - Birsay
Common Guillemots (Uria aalge) on the cliffs of the Brough of Birsay, Orkney. Although there are still many Guillemots, there are also many empty spaces on ledges where Guillemots would have nested in the past, but Guillemot numbers are declining due to lack of food, and they are now on the Amber list of Birds of Conservation Concern.
17 May 2014
Greylag geese, Birsay, Orkney
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191
Orkney - Birsay
Greylag geese (Anser anser) near the Loch of Banks, Birsay, Orkney
07 July 2013
Greylag geese, Birsay, Orkney
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191
Orkney - Birsay
Greylag geese (Anser anser) near the Loch of Banks, Birsay, Orkney. Two of them have neck collars which enables them to be more easily tracked than just having leg rings, which are difficult to read.
07 July 2013
Brough of Birsay
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191
Orkney - Birsay
Brough of Birsay with Westray beyond it from RSPB Orkney's sea tour on MV Hamnavoe in 2014
18 May 2014
Brough of Birsay
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191
Orkney - Birsay
Brough of Birsay from RSPB Orkney's sea tour on MV Hamnavoe in 2014.
18 May 2014
Brough of Birsay and Marwick Head
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191
Orkney - Birsay
Brough of Birsay and Marwick Head, Orkney mainland, from RSPB Orkney's sea tour on MV Hamnavoe in 2014