Letters

01 April 1967
Comments Letters Eruptions of Great Tits and other species Sirs,--I was interested in Dr. C. M. Perrins's paper on the effect of the seed crop of the beech Fagus sylvatka on the populations and movements of the Great Tit Partis major (Brit, Birds, 59: 419-432). To strengt...
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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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