I have a neighbor with two beautiful ducks in his pond. They don't have a coop, they just sleep below a little hill in a pile of hay. They are a few years old and have never had any problems with predators, other than a neighboring dog coming once and stealing some eggs. But, the neighbor now keep sher dog chained up. We live in an agricultural area...one lady about 10 miles away has last 15 lambs this year to coyotes, so we are not immune to predators. We are by the Delaware river, so we have lot's of hawks. We are surrounded on four sides by a 700 acre cattle farm, with dogs that patrol to protect the cattle. Do you think that's why the ducks have been safe? Are there predators that don't care about ducks but would love to munch on a chicken? I am just wondering because my neighbor is cool and would be fine with my chickens running around both of our yards, but I want them to be safe too, and if there are chicken specific issues he hasn't had to deal with it, I'd rather keep'em protected. Thanks in advance for your thoughts!