Original sentence: Boreray: Sgarbhstac, Stac an Armin, Stac Lee.This is a continuing list of these smaller Outer Hebridean islands:
Edited sentence: At  Stac an Armin is the highest sea stack in the British Isles and in July 1840, the last great auk (Pinguinus impennis) seen in the British Isles was captured there.Boreray (North Uist):.Boreray (St Kilda): Sgarbhstac, Stac an Armin, Stac Lee.Many of them as are obscure and few have every been inhabited.Nonetheless, some have a significant degree of notability.The islet on which Kisimul Castle stands is the ancient seat of Clan MacNeil.This is a continuing list of these smaller Outer Hebridean islands