Ƙananan Ƙarƙashin

Sule Stack ko Stack Skerry tsibiri ne mai nisa sosai ko tarin a Arewacin Atlantic daga arewacin Scotland. An kafa shi ne daga Lewisian gneiss . 

Sule Stack karya ne    arewa da babban yankin Scotland, kuma   yamma da babban yankin Orkney, a grid reference HX561179 . Makwabcin Sule Stack, Sule Skerry, ya yi ƙarya   arewa maso gabas da tsibiran Rona da Sula Sgeir masu nisa sun kwanta zuwa yamma. Sule Stack da Sule Skerry gida ne ga dubban gannets kuma a sakamakon haka an jera su a matsayin yanki na kariya na musamman ; tsibirin ya fada cikin yankin gudanarwa na tsibirin Orkney .

Tsibirin (tare da Sule Skerry) an sanya shi a matsayin Muhimmin Yankin Tsuntsaye (IBA) ta BirdLife International saboda yana tallafawa yawan kiwo na nau'ikan tsuntsayen teku da yawa.
Nau'in tsuntsaye da ke yin gida a kan tarin sun hada da: 

 Razorbill Alca torda
 Fratercula arctica na Atlantic
 Fulmar glacialisFulmarus glacialis
 Babban baƙar fata mai baƙar fata Larus marinus
 Shag na yau da kullun Phalacrocorax aristotelis
 Kittiwake mai baƙar fata Rissa tridactyla
 Arctic tern Sterna paradisaea
 Gannet na Arewa Morus bassanus
 Guillemot na yau da kullun Uria aalge

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