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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

Letters

01 June 1963 Comments Letters SIRS,--Having paid some attention to t h e manner in which t h e face of t h e Rook becomes bare, I m a y state t h a t in t h e main m y observations a n d specimens confirm Mr. Witherby's conclusions. But, with regard to this species n o t breeding in t... Read More

Recovery of Marked Birds.

01 June 1963 Comments Main paper T H E annual article reporting progress for 1913 will appear, it is hoped, in the n e x t number. The following have kindly sent in subscriptions towards the expenses of the Marking Scheme since t h e last acknowledgment was made :-- Miss C. M. Acland, Mr... Read More