Thanks for the quick, detailed responses!
Additional facts, our pond is 2 acres clear cut surroundings with no signs of beavers, muskrats so Im hesitant to think its one of those. I do have lots and lots of deer so i assume it could be one of them while getting a drink. I do have a game camera and might need to set on up to see.
I grow the arrowhead (duck potatoes ) from bulbs to mature plants, in a small swimming pool next to our house. These have been in the pool untouched and grow just fine. Then, for whatever reason when we put them in the pond they disappear and get eaten. Unfortunately, i do not have any pictures to share at this time..
