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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Do English Woodpigeons Migrate?

01 July 1955
Comments Main paper T H E object of this short paper is to draw attention to a curious problem in the hope that others will help in solving it. The observations here described, made independently by Lack round Oxford and by Ridpath in Kent and Sussex, cannot be satisfactoril...
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