I have 11 ducks in 3/4 acres of land. I try to maintain a clean environment, but we do have some sparrows that search their coop for food. In my reading, it was recommended that ducks in general get vaccinated. My questions are: does anyone out there vaccinate their ducks? If so, what do you vaccinate for? I also read that an initial worming for baby ducks is a good idea (like we do with puppies), any thoughts on this?