Notes

01 July 1931 Comments Notes ON May 1st, 1931, in an open hole in a limb of a great ash tree at Bamston Lodge, Essex, I found a Jackdaw (Colceus m. spermologus) sitting on four eggs so much mud-daubed that they were very inconspicuous on the nest material. I had not time to investig...
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The display of the Mallard

01 June 1931 Comments Main paper years ago, the writer gave notes on the courting display of several common ducks. (See Vols. XVIII. and XIX.). It had been intended to include the Mallard (Anas p. platyrhynchd), but the observations then available seemed so markedly different from those ...
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