Letter

01 March 1991
Comments Letters The occurrence of 'Russian' Bean Geese in Britain. In reply to Andreas Noeske (Brit. Birds 83: 556-560), we should like to comment as follows: 1. We agree that the Bean Goose Anser fabalis shows clinal variation and that subspecific identification is d...
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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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