SIRS,--In his paper on "The snail-eating behaviour of Thrushes and Blackbirds" (antea, p. 38) D. Morris states that "the snail-shell is held by the rim of its aperture," but I do not think that he can be right. If a bird holds the shell by its rim alone it will lose the snail and most of the shell when this breaks, and will be left holding only a fragment including that part of the rim it was holding....
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