COPINSHAY, an island, in the parish of DEERNESS, county of ORKNEY; containing 13 inhabitants. It is about three-quarters of a mile in length and half a mile in breadth, lying about three miles directly eastward of the mainland, and comprising some good ground, both arable and pasture. The island is accessible on the west side only. The height of the east side forming a perpendicular rock, is 300 feet, and about three-quarters of a mile to the north of the island, is a large rock called the Horse of Copinshay, about 200 feet high, and covered on the top with grass, to which a few sheep are sometimes taken to graze. Both of these rocks are resorted to by immense numbers of sea-fowl in the spring and summer months; and at the period when they deposit their eggs and hatch their young, if a gun be fired from a boat below, the birds, alarmed by the report, fly from their nests in such myriads as to darken the air for some extent around. They are principally maws, nories, scarfs, auks, and kittyauks.