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Letters

01 June 1973 Comments Letters Wallcreeper on migration in the Netherlands Dr H. Lohrl's statement (Brit. Birds, 63 : 167) that the Wallcreeper Tichodroma muraria is non-migratory has been challenged by David Elias, H. G. Alexander, Guy Mountfort and K. D. Smith (Brit. Birds... Read More

Studies of Sparrowhawks

01 June 1973 Comments Main paper Roy Blewitt's photographs are the first of the Sparrowhawk Accipiter nisus to be published in British Birds since the long series which accompanied J. H. Owen's remarkable studies during 1916-36. They show well the uniform upperparts (plates 41a, 42b, ... Read More

Editorial: Birds and marine pollution

01 August 1972 Comments Editorials Press reactions to the Stockholm Conference on the Human Environment (see also 'News and comment' on page 359) were, perhaps un>avoidably, mixed. Many laid most stress on such features as the absence of the Russian and other governments, the tons of paper... Read More

Report on rare birds in Great Britain in 1971

01 August 1972 Comments Main paper Plates III and 49-12 This is the fourteenth annual report of the Rarities Committee. As was announced in 'Changes in the editorial board' (Brit. Birds, 65: 1-3), P. A. D. Hollom has retired as chairman of the committee and we take this opportunity of expr... Read More