Letters

01 September 1950
Comments Letters S I R S , -- I n their paper on this subject in British Birds, vol. xlii, p. 325, David and Elizabeth Lack write t h a t Dr. D. A. Bannerman in his note on Chaffinch Migration in .British Birds, vol. xxxvii, p . 177, supposed t h a t the birds he saw in N...
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Letter

01 February 1929
Comments Letters SIRS,--After reading carefully Mr. Coward's article (antea, p . 134) and Col. Ryves's letter (antea, p. 171), I would like to suggest an explanation of wing-clapping which occurred to me years ago, after observing domestic Pigeons make this noise within a...
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