The Eriskay Pony is the last remnant of Scotland’s native horse. There are fewer than 300 Eriskay Ponies in the world and the Rare Breed Survival Trust lists its status as "Priority" on their Watchlist. The breed is defined by the Studbook of Origin of Comann Each nan Eilean, the mother society for the pony.

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The Society is based on the Isle of Eriskay and is dedicated to preserving the Eriskay Pony in its native heath. Many committee members are islanders who grew up around the ponies, using them for croft work.