 The St Kildans kept up to 2,000 of a different type of sheep on the islands of Hirta and Boreray. These were a Hebridean variety of the Scottish Dunface, a primitive sheep probably similar to those kept throughout Britain during the Iron Age. At the time of the evacuation all the islanders' sheep were removed from Hirta, but those on Boreray were left to become feral, and these are now regarded as a breed in their own right, the Boreray. The Boreray is one of the rarest British sheep, and is one of the few remaining descendants of the Dunface (although some Scottish Blackface blood was introduced in the nineteenth century).
