Requests for information

01 September 1974 Comments Editorials Colour-ringed Great Black-backed GullsA three-year study of the feeding ecology of the Great Black-backed Gull Larus marinus during 1974-76 includes the colour-ringing of some 3,600 nestlings at breeding colonies in Orkney with a two-colour comb...
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Editorial: Records of rare birds

01 August 1959 Comments Editorials DURING the past year or more there has been a growing realization that a large number of birds formerly thought to be rarities are reaching the British Isles regularly, and even in some numbers. In some cases a change of habit or expansion of breeding dis...
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