Look hard at the photo and you will see a tight curley coat with somewhat wavy hair on the ears; thus my previous guesses. Personally, I find the several Lab guesses unlikely because of the coat. In the olden days, duck hunters thought little of crossing two great waterfowl dogs with a total disregard for breeds. The dog may very well be such a cross…Lab/Water Spaniel? I don't think we will ever get a diffentive answer, but all the speculation is not without amusement.