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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Notes

01 January 1985
Comments Notes Hybrid resembling Ring-necked Duck. On 18th March 1984, a Ring-necked Duck Aythya collaris was reported from Tottenhill Gravel-pits, Norfolk. N. Bostock, myself and others went to see it. At about 150m it resembled a male Ring-necked Duck, but at ...
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