Peter Island is an uninhabited island in Digby County, Nova Scotia, Canada.
It is a bird sanctuary owned by the Nova Scotia Bird Society Sanctuary Trust, for gulls and terns.
A lighthouse was built in 1850, and replaced in 1909. The lighthouse was decommissioned in 2014, and declared a Heritage Site in 2021.
In 1986, the Islands Historical Society was formed as a registered charity to preserve and promote Long and Brier Islands.
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