SIRS,--In Vol. xl, p. 245, you say t h a t the taking of food from the water b y Carrion Crows (Corvus c. corone) has apparently not been "previously recorded in our ornithological literature." I have recently had occasion t o search t h e literature for London, a n d can offer you t h e following references : 1. Prof. C. E . Raven (English Naturalists from Neckam to Ray, 1947, pp. 193-4) quotes Wil...

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