Eider's method of eating crabs.--On 16th December 1957 and subsequent days I had several first-winter Eiders (Somateria mollissima) under observation from the pier at Southend-on-Sea, Essex. They were seen diving from a range of a few yards and on returning to the surface, on every occasion, each had a small green crab between its mandibles. The crab was toyed with until two or three legs only were...

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