I saw an otter while white water rafting in UT this summer, and it was so special! I love their antics, they are so adorable to watch. I bet that was a riot watching them, and then them warning you away from their spot! And, the ducks are pretty, too. Where I used to live, we had wood ducks that nested in the nesting box we built for them, and only one year did we see the babies coming out and head to the other end of the pond with mom. Only way you knew they were swimming with her was with binoculars. They stayed so close to her, they blended into her body! There were I think 7 of them! Never saw them after that, or any other year, but they always came and laid eggs and hatched them. Very shy ducks, and very beautiful! That would be so neat to have ducks coming and going, try to figure them all out. Have to be very quiet and patient, glad you're spotting several on your pond!