I'm not too keen on poultry generally, but I think ducks are really cute. I know Baby would have a ball punting the occasional duck.
This spring I was to the point of mulling over how the husband could build a duck-tractor, but eventually decided against it. Every time I hear the coyotes take out a nearby chicken, I get paranoid and decide I don't want to chum for predators that might potentially want to eat a mini-horse. I don't know if coyotes would attack our horses, but don't want to risk it. (I've heard the coyotes take chickens, and by neighbors' word of mouth, know that they've taken a turkey and a small dog.) Then last weekend we were chatting with one of our neighbors, and he showed us a photo of a black bear in his front yard (he lives maybe 3 lots down the road.) I think I'll sit out the duck ownership and hope the bear is attracted to all the neighbors' poultry.