News and comment

01 June 1973
Comments News and comment Towards realistic penalties? During the last two or three years there have been too many occasions when it has been necessary to deplore an apparent upsurge of interest in egg collecting resulting in the robbing of nests of rarer species, notab...
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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...
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Notes

01 June 1973
Comments Notes Aggression by female Buzzard at nest I was intrigued by the recent note from G. A. Williams and D. Coan on aggression by a female Buzzard Buteo buteo {Brit. Birds, 66: 31-32). O n 26th April 1944, in a large stand of mature Scots pines on a Lak...
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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, ...
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Swifts in sea-breeze fronts

01 June 1967
Comments Main paper G L I D E R P I L O T S often find themselves sharing rising currents of air with birds, sometimes to considerable heights. A source of upcurrents which has been found and used more extensively in recent years is the rising air at the sea-breeze front. Tw...
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Reviews

01 June 1967
Comments Reviews Animal Navigation. By R. M. Lockley. Pan Books, London, 1967. 205 pages; 25 text-figures. 6s. Ornithologists are apt to think of animal navigation as being about the spectacular homing journeys of birds. In this book the author interprets the term very br...
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Notes

01 June 1967
Comments Notes Barn Owl perching on man.--On 14th December 1966, at 3 p.m., I was digging a ditch on the Royal Society for the Protection of Birds' reserve at Leighton Moss, Lancashire, when I saw a Barn Owl Tjto alba hunting along the hedgerow. It soon dropped on to a ...
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