Breeding biology of Rock Doves

01 October 1968 Comments Main paper 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 mo...
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Letter

01 February 1941 Comments Letters S I R S , -- I t has long been known t h a t there is a remarkable relation between t h e Short-eared Owl (Asio flammeus) and the common field-vole (Microtus agrestis). The common vole at apparently regular intervals increases in numbers in different loca...
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