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Letters

01 November 1953 Comments Letters SIRS,--The points which Mr. K. Williamson makes (antea, pp. 231-32) in connection with a remark of mine on the distribution of the Alaska Wren (Troglodytes t. alascensis) (antea, pp. 48-49) are of interest not only in regard t o the evolution of wren race...

Reviews

01 November 1953 Comments Reviews Social Behaviour in Animals. By N. Tinbergen. (Methuen, London, 1953). 12s.6d. IN The Study of Instinct (reviewed in vol. xlv, p. 182) Dr. Tinbergen was concerned with the entire study of animal behaviour and with its results up to 1948. In the present, m...

Notes

01 November 1953 Comments Notes Effective distraction display by Mallard.--As only a few observations have been recorded indicating the effectiveness of distraction display by a parent bird in deflecting the attention of a potential predator from the young [Bird Display, pp. 104-105) t...

Displacement-sleeping in the Avocet and Oystercatcher as a reaction to predators

01 November 1953 Comments Main paper (Illustrations by Robert Gillmor.) MAKKINK'S studies (1936, 1942) on the behaviour of the Avocet (Recurvirostra avosetta) and the Oystercatcher (Hasmatopus ostralegus) have shown that, at certain points during intraspecific fighting', both these species m...

The song of the Woodpigeon

01 November 1953 Comments Main paper DURING 1948, one of us (J.S.H.), after listening carefully to the singing- of the Woodpigeon (Columba palumbus) and the recording of a number of its songs, came to the conclusion that the song of this species differed from the generally accepted version, ...

Studies of some species rarely photographed LII. Hawk Owl and Ural Owl

01 November 1953 Comments Main paper (Plates 60-67). T H E Hawk Owl (Surnia ulula) is a distinctive bird gaining- its name from the hawk-like appearance of its relatively small flattopped head (see plate 62), rather short and pointed wings and long tail. In flight it somewhat resembles a Kes...

An observational study of the Gulls of Southampton water

01 November 1953 Comments Main paper T H E work described in this short paper was carried out in the winters of 1950/51 and 1951/52 mostly in the Southampton area. I am most grateful to my friends from the New Forest Ornithologists' Club, Gordon Wooldridge, Alan Moody, Barry Goater, and Keit...

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...

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...

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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Letters

Reviews

Notes

Displacement-sleeping in the Avocet and Oystercatcher as a reaction to predators

The song of the Woodpigeon

Studies of some species rarely photographed LII. Hawk Owl and Ural Owl

An observational study of the Gulls of Southampton water

Letters

Review

Notes

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