Letter

01 April 1953
Comments Letters SIRS.--I am trying to collect information about ultra-quiet bird song (sub-song, etc.) and I should be grateful if you would allow me to appeal through the medium of British Birds for any help that other observers can give me. As records on this subject a...
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Reviews

01 April 1953
Comments Reviews Cornwall Bird Watching and Preservation Society. Twenty-first Annual Report, 1951. Edited by B. H. Ryves, A. G. Parsons and H. M. Quick. T H I S report follows its usual make-up, with systematic notes split up over 3 sections ; there are also separate ta...
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Reviews

01 April 1953
Comments Reviews Mountain Birds. By R. A. H. Coombes. Plates by G. E. Lodge. (Penguin Books, King Penguin series, London, 1952). 4s. 6d. Mountain Birds is written and illustrated with grasp and originality, but is only permitted by the King Penguin format to deal with six...
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Books Received

01 May 1952
Comments Editorials Bird-watchers' Delight. By John Warham (Country Life. 18s.) The Birds of the Malav Peninsula, Singapore and Penang. By A. G. Glenister. (O.U.P. 35s.) Bird Recognition, 2. By James Fisher (Pelican Books, js. 6d.)...
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Letters

01 May 1952
Comments Letters --The increasing use of various types of colour-marking for the field recognition of birds must lead to confusion between individual experiments unless an authoritative central register can be compiled. The Scientific Advisory Committee of the British Tru...
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Reviews

01 May 1952
Comments Reviews The Study of Instinct. By N. Tinbergen. (Oxford U.P., 1951. 25s.). Field observers have long felt the need of an authoritative, condensed summing up of the vast but fragmentary and often contradictory mass of fact and theory which has been accumulating ab...
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