Letters

13 March 2014 Comments Letters D o some Wallcreepers migrate? Recent letters by David Elias, H. G. Alexander and Guy Mountfort on the movements of the Wallcreeper Tichodroma muraria referred respectively to observations in Cyprus (Brit. Birds, 63: 393-394) and the Indo-Pakistan subc...
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Letters

01 January 1985 Comments Letters How many bird species in the world? In a recent book review (Brit. Birds 77: 280) mention is made of the '8,500-odd species' of birds in the world. A similar figure is quoted by the late Leslie Brown in his foreword to A Complete Checklist of the ...
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