T H E breeding-colony of Cormorants (Phalacrocorax c. carbo) to which this paper refers is situated on low rocky islands in the Castle Loch in the parish of Mochrum, Wigtownshire. The birds have bred there probably for a very long time. They were there in 1867 when Robert Gray visited the place, and there is a picture of them at the nesting-colony in an estate map in my possession dated 1790. Ther...

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