We had a pair of interesting looking rats during the snow and a little bit after. As well as resolving not to put more feed on the ground, I watched them busily seem to collect food and deposit it as a store. That and scuttle in and out of the tunnel they made at the base of the back bed. They've gone now.

I'm wondering what they were as they didn't quite look like the usual rats to me. I wonder about water voles but are a way from running streams, etc. And I realise my ability to identify things is not that good, perhaps they were brown rats after all...