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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Letters

01 February 1981 Comments Letters Bill-base feathering and apparent bill thickness of some waders Many observers have in the past attempted to support the identification of suspected rare species, especially stints and peeps Calidris, by noting the thickness of the base of...
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