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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News and comment

01 June 1967
Comments News and comment launches major appeal fund.--With an eye set firmly on a target of £100,000, the Royal Society for the Protection of Birds has now launched what must surely be the most ambitious appeal fund ever made by- a voluntary natural history body in this co...
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Letters

01 June 1967
Comments Letters Little Ringed Plovers in Britain during 1963-67 Sirs,--My last report on the increase and spread of the Litde Ringed Plover Cbaradrius dubius in Britain covered the years 1960-62 (Brit. Birds, 57: 191-198), although some information up to 1965 has been gi...
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Letters

01 December 1950
Comments Letters SIRS,---A note recently published in British Birds (antea, p. 89) commenting on the presence of Bewick's Swans a t Malltraeth, suggests t h a t the status of this species in Anglesey is t h a t of a n occasional visitor. These birds are, however, more reg...
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Review

01 December 1950
Comments Reviews Robin Redbreast. By David Lack. (Oxford University Press ; L o n d o n : Geoffrey Cumberlege. 15/-). In this volume, which appears to be a by-product of his earlier work and is a sort of ornithological jeu d'esprit, Dr. Lack deals with the " unnatural h i...
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Notes

01 December 1950
Comments Notes " A N T I N G " OF CARRION CROW ON June 15th, 1949, at Strawberry Hill, Middlesex, 1 observed a Carrion Crow (Corvus corone), at a distance of twenty yards, behaving in a peculiar manner. It was squatting on the grass with its feathers widespread. At hal...
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