Sule Stack

 ( Special Protection Areas In Scotland ) 

Sule Stack or Stack Skerry is an extremely remote island or stack in the North Atlantic off the north coast of Scotland. It is formed of Lewisian complex.

Sule Stack lies north of the Scottish mainland, and west of the Orkney mainland, at . Sule Stack's sole neighbour, Sule Skerry, lies northeast and the remote islands of North Rona and Sula Sgeir lie further to the west. Sule Stack and Sule Skerry are home to thousands of gannets and as a result are listed as a special protection area; the island falls within the administrative region of the Orkney Islands.

The island (along with Sule Skerry) has been designated an Important Bird Area (IBA) by BirdLife International because it supports breeding populations of several species of .

Bird species nesting on the stack include:

• Razorbill Alca torda
• Atlantic puffin Fratercula arctica
• Fulmar Fulmarus glacialis
• Great black-backed gull Larus marinus
• Common shag Phalacrocorax aristotelis
• Black-legged kittiwake Rissa tridactyla
• Arctic tern Sterna paradisaea
• Northern gannet Morus bassanus
• Common guillemot Uria aalge

• List of outlying islands of Scotland

• (1987). 9780632016051, Geological Society. . ISBN 9780632016051