{{About|the small sea stack north of the Scottish mainland|the larger nearby island|Sule Skerry|the island north of the Hebrides|Sula Sgeir}} {{Use dmy dates|date=April 2022}}
{{Infobox Scottish island |coordinates = {{coord|59.02|-4.51|display=inline}} |GridReference=HX561179 |celtic name= |norse name= |meaning of name=Gannet Stack, from sùlaire (Scottish Gaelic for northern gannet), and Stack (originally Norse) Norse{{sfn|Stewart|1938|p=283}} |area={{cvt|2.9|ha|acre|frac=4}} |area rank= |highest elevation={{cvt|36|m|ft}} |Population=0 |population rank= |main settlement= |island group= North Atlantic |local authority= Orkney |references={{sfn|National Records of Scotland|2013}}{{sfn|Haswell-Smith|2004}}{{sfn|Orkney (Mainland)|2014}} |Image=Sule Stack 01.04.2012 14.08.11.jpg}}
'''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 gneiss.{{sfn|Kirton|Hitchen|1987}}
Sule Stack lies {{convert|49|km|nmi|frac=2|abbr=off}} north of the Scottish mainland, and {{cvt|66|km|nmi|frac=2}} west of the Orkney mainland, at {{gbmapping|HX561179}}. Sule Stack's sole neighbour, Sule Skerry, lies {{cvt|10|km|nmi|frac=2}} northeast and the remote islands of 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 seabirds.<ref name=bli>{{cite web |url= https://datazone.birdlife.org/site/factsheet/2607 |title=Sule Skerry and Sule Stack|author=<!--Not stated--> |date=2024|website= BirdLife Data Zone|publisher= BirdLife International|access-date= 2024-08-28}}</ref>
thumb|From the west, Sule Stack appears like a double rock Bird species nesting on the stack include:{{sfn|EEA|n.d.}} *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''
==See also== * List of outlying islands of Scotland
==References== {{reflist|22em}}
==Sources== {{sfn whitelist|CITEREFNational_Records_of_Scotland2013}} {{refbegin|33em}} *{{Haswell-Smith}} *{{cite book |last1=Kirton |first1=S.R. |last2=Hitchen |first2=K. |editor-last1=Coward |editor-first1=M.P. |editor-last2=Dewey |editor-first2=J.F. |editor-last3=Hancock |editor-first3=P.L. |title=Continental Extensional Tectonics |url=http://sp.lyellcollection.org/cgi/content/abstract/28/1/501 |series=Special Publications |volume=28 |date=1987 |publisher=Geological Society |location=London |isbn=978-0-632-01605-1 |pages=501–510 |chapter=Timing and style of crustal extension N of the Scottish mainland }} *{{NRS1C}} *{{cite map |series=Landranger |scale=1:50,000 |issue=6 |title=Orkney (Mainland) |ISBN=9780319228128 |publisher=Ordnance Survey |date=2014 |ref={{harvid|Orkney (Mainland)|2014}} }} *{{citation |journal=British Birds |volume=31 |issue=9 |pages=282–294 |title=Notes on the Gannetries of Sule Stack and Sula Sgeir |first=Malcolm |last=Stewart |publisher=Witherby & Co. |date=1 February 1938 |url=https://www.britishbirds.co.uk/wp-content/uploads/article_files/V31/V31_N09/V31_N09_P282_294_A049.pdf |access-date=1 November 2018 |archive-date=19 September 2021 |archive-url=https://web.archive.org/web/20210919145822/https://britishbirds.co.uk/wp-content/uploads/article_files/V31/V31_N09/V31_N09_P282_294_A049.pdf |url-status=dead }} *{{cite web |publisher=European Environment Agency |title=Sule Skerry & Stack Skerry |url=http://eunis.finsiel.ro/eunis/sites-factsheet.jsp?idsite=700100230 |ref={{harvid|EEA|n.d.}} }}{{Dead link|date=January 2026 |bot=InternetArchiveBot }} {{refend}}
==External links== {{Commons category|Sule Stack|position=left}}
{{coord|59.02382|N|4.50846|W|region:GB_source:enwiki-osgb36(HX561179)|display=title}}<!-- Note: WGS84 lat/long, converted from OSGB36 grid ref -->
Category:Special Protection Areas in Scotland Category:Sites of Special Scientific Interest in Orkney Category:Important Bird Areas of Orkney Category:Stacks of Scotland Category:Uninhabited islands of Orkney
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