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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The Iceland Gull in winter

01 December 1950
Comments Main paper 'FOR some obscure reason the Glaucous Gull (Lams hyperboreus) became comparatively numerous in Shetland waters during the winters of the late war. Since then its numbers have dropped back to the normal few. Whatever was the reason for this fluctuation, t...
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Editorial

01 December 1950
Comments Editorials WE are asked by the publishers to announce that the annual subscription to British Birds is to be raised by one shilling. We regret having to remind readers that the cost of living is rising, but we regret still more having to make this increase, small t...
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Letter

01 February 1941
Comments Letters S I R S , -- I t has long been known t h a t there is a remarkable relation between t h e Short-eared Owl (Asio flammeus) and the common field-vole (Microtus agrestis). The common vole at apparently regular intervals increases in numbers in different loca...
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Review

01 February 1941
Comments Reviews Ritchie (1940), " An analysis of t h e influence of weather upon a migratory movement of birds," Proc, Roy, Soc, Edin., Vol. 60, P- 299.analysis of t h e d a t a relating t o t h e 1921 invasion of t h e Waxwing (Bombycitta garrulus) and t h e associated...
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Review

01 February 1941
Comments Reviews Courtship and Display among Birds. By C, R. Stonor. (Country Life, Ltd.) With 57 plates from photographs, 8s. 6d. net. No aspect of bird behaviour is more fascinating, more biologically important or offers a more promising field for study than that of dis...
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