Ha! This is funny that a Rottie doesn't like water. My 3 1/2 YO Female dives into our pool continuously until we make her stop. She is also a house dog as she came from a city home where the kid would just open the door and let her run. It's a problem we haven't been able to correct in 2 1/2 years. If anyone had told me that I would be living in the country and still walking a dog on a leash, I would have called them a liar.
We do have an outdoor dog, a yellow Lab that showed up at our house a couple years ago in a blinding rain storm. He was about 5 weeks old at the time. My stepson was staying at our house and taking care of the critters while we were in FL and heard him whine. He was a very destructive pup, but now is very handy at keeping the flocks safe. I just got 4 African goslings and turned them loose with my two remaining mixed breed ganders. Like PetesMom was saying, the ganders are very protective, especially of the goslings and puts our Lab to flight whenever he is to close. But back on the subject, I moved here 6 years ago with 7 geese and predators have taken all but the two ganders. I haven't lost any birds since the Lab came here. I don't think geese would discourage a coon or fox, or a coyote. All the best to ya...........Pop