Along the Lower Ock

Following Martin's previous comment, I chose to have a walk along the Lower Ock and immediately there are signs of water vole activity:
On the extruding pipe there is what looks like a water vole latrine:
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Whilst other animals will make burrows (especially signal crayfish), this one may well be  made by a water vole.
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And to confirm the feed signs, sat on a promontory is a small water vole:.

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Which then swam across the small river:
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Before climbing up the bank and feasting on the waterside vegetation which is so important for water voles:
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So it seems that at least on one part of the river, the water voles are still hanging on.  And thanks to Martin for the tip-off.