October 1968 – vol. 61, issue 10, pp 429–448 Just over twenty years ago Lees (1946) published an account of the breeding of Rock Doves Columba livia on the Cromarty coast of Scotland. He showed that eggs could be laid in every month of the year, giving the species the distinction of having the most extended breeding season of all British birds. Nevertheless, he did find that any particular 'doo-cave' (the Scots name for pigeon caves from which... This article is only available to registered users.To read more, please log in or purchase a subscription.