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Letters

01 November 1986 Comments Letters Depths to which auks dive. With reference to the recent note on 'Razorbill [Alca torda] swimming at depth of 140 m' (Brit. Birds 79: 339), I draw attention to a paper published in The Auk last year on 'Diving depths of four alcids' by John F. Piatt and...

Mystery photographs

01 November 1986 Comments Main paper The size and structure of last month's mystery bird (plate 264, repeated here) are obviously those of a warbler. The combination of generally unmarked upperparts, rather small bill, noticeable supercilium and non-rounded tail suggests a Phylloscopus. I...

Report on rare birds in Great Britain in 1985

01 November 1986 Comments Main paper This is our twenty-eighth annual report. ZEISS West Germany has again sponsored the work of the Rarities Committee. This continued financial support is most welcome, enabling the Committee to cope much more effectively with the processing and publicati...

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Letters

Mystery photographs

Report on rare birds in Great Britain in 1985

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