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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Letter

01 October 1939 Comments Letters SIRS,--In connexion with t h e discussion of this subject (antea, pp. 248-50) it is perhaps worth mentioning t h a t in September, 1911, I watched quantities of Great Shearwaters in t h e Bay of Biscay on a voyage to Bordeaux on the 6th, and on the return...
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