This picture was labelled by the artist in a very general way! He was not a local! the stack seems to be that at Penyholt Bay, near Linney Head, with the natural arch to the east being that of Cabin Door, which collapsed in the early twentieth century.

Sea birds no longer nest on Penyholt Stack in the same profusion as they do at Stack Rocks to the east - perhaps they never did as the stack is accessible at low tide.