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 November 1974 Comments Letters Oiled seabirds successfully cleaning their plumage I was interested to read the note by T. R. Birkhead, Clare Lloyd and P. Corkhill concerning the successful cleaning of oiled plumage by seabirds (Brit. Birds, 66: 535-537). Instances of this be...
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