Letter

01 October 1939
Comments Letters SIRS,--In connexion with t h e discussion of this subject (antea, pp. 248-50) it is perhaps worth mentioning t h a t in September, 1911, I watched quantities of Great Shearwaters in t h e Bay of Biscay on a voyage to Bordeaux on the 6th, and on the return...
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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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