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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Letters

01 March 1952
Comments Letters SIRS,--We are hoping to collate information about visible migration over, and on the shores of, the Mediterranean. Very little has been published on the subject and no doubt a good many unpublished records, especially those made on voyages, are in existen...
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Reviews

01 March 1952
Comments Reviews British Bird Boohs : An Index to British Ornithologv, A.D. 1481 to J.I). 1948. By Raymond Irwin (London, Grafton & Co., 1951. 63/-). The title of this book gives a very inadequate idea of its contents since it indexes and classifies, not only books, b u t...
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Notes

01 March 1952
Comments Notes The Display of the Blackbird.--During observations on four pairs of Blackbirds (Turdus merula) in 1949, and on the same four pairs with the addition of another in 1950, the following display was noted. All of the birds concerned were recognizable in the ...
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