The past few weeks I have been seeing a lot of snakes around my pond. I've determined they are all Common Watersnakes Nerodia sipedon sipedon . I actually got a shot albeit a poor one of this guy today on my cell phone. He's been hanging out by one of my feeding spots this week. So I was looking for him when I got there yesterday. Impressive how well they can swim above/below the water.

I would guess I have 5 or 6 of these guys from 2-4' long around my .75 acre pond. Has anyone dealt with these guys before and should I be concerned about them? Reading on the web I did find that fish are part of their diet, but I don't have a feel for what kind of damage they can do.