Letters

01 March 2001 Comments Letters I was not terribly reassured by any of the comments of Mark Avery (Brit Birds 93: 500) in reply to my criticism of the pilot Ruddy Duck Oxyura jamaicensis cull and the rationale behind it (93: 394-396). Rather disturbingly, the RSPB's Director of Conse...
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Letters

01 May 1988 Comments Letters Are we getting our figures right? The BTO may well tell me that it is extremely naughty of me to turn their population estimates of winter thrushes Turdus (by D. W. Snow, in Lack 1986) into the rounded ratio of: Blackbird T. merula 28: Song Thrush T. p...
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