Letters

01 March 2000 Comments Letters I should like to suggest that the time has now come to review the value of the county bird reports in their present form, since, in principle, they have not changed their format in the last 50 years. The publication of systematic lists ever y year, oft...
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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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