Letters

01 June 2003
Comments Letters In October 2000, the Department for the Environment, Transport and the Regions (DETR) commissioned a consortium (consisting of the BTO, the RSPB/Oxford University Farmland Bird Group, the Central Science Laboratory (CSL) and WildWings Bird Management) ...
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Letters

01 December 1955
Comments Letters Further remarks on discoloration in House Sparrows Sirs,--The observations of C. J. O. Harrison (Brit. Birds, 56: 296-297) on 'industrial' discoloration in House Sparrows (Passer domesticus) and other birds prompt us to record information on an allied pro...
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