Saw an otter on my 5.30am dog walk round the reservoir today.
My dog, who was 30-40 yards ahead of me suddenly started barking, which she never normally does. I thought maybe someone was there or there was a body floating in the water, but instead when I caught up with her there was a little brown head bobbing up and down in the water. He looked at me for a while and made some funny noises, then went under and was gone.
I knew there had been some living there for a year or so but this is the first time I have seen one in the flesh.