Unwelcome Visitor

For a brief second I got very excited!! 
Then I was pretty sure this was an American mink, a most unwelcome alien introduction, and the reason why I haven't seen a water vole on a large stretch of the Derwent for quite a few years.
It was hustling along the river bank with some sort of prey in its mouth, probably, thankfully, I couldn't see what it was.
I have never seen one of these on the river before although there has been some talk / video of them near the town.
Startling enough as this was by itself, I have to report that just before I saw said creature I met a Buddhist monk walking along the riverside path. He was very friendly and we exchanged salutations.

I mean really, a monk AND a mink on the same day?? What odds would I have got on that?!