Spraint is the dung of the

otter Otters are carnivorous mammals in the subfamily Lutrinae. The 13 extant otter species are all semiaquatic, aquatic, or marine, with diets based on fish and invertebrates. Lutrinae is a branch of the Mustelidae family, which also includes we ...

Spraints are typically identified by smell and are known for their distinct odors, the smell of which has been described as ranging from freshly mown hay to putrefied fish. The

Eurasian otter The Eurasian otter (''Lutra lutra''), also known as the European otter, Eurasian river otter, common otter, and Old World otter, is a semiaquatic mammal native to Eurasia. The most widely distributed member of the otter subfamily (Lutrinae) of th ...

's spraints are black and slimy, long and deposited in groups of up to four in prominent locations near water. They contain scales, shells and bones of water creatures. Because of the decline of otters in Britain, several surveys have been made to record the distribution of the animal, usually by recording the presence of spraint. Lutra lutra 01 by-dpc

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