We have 4 older chicken hens. Getting ducks has been a dream of mine for years, and we finally got some! 2 Rouen, and 2 Indian Runners. Additionally, we got 2 Americauna, and 2 Buff Orpington to get our chicken flock back up in numbers. Here are my questions... I want to raise the new birds together. I got them medicated feed to start, but is that right? I've seen differing opines on this - also, brewers yeast for the ducks, but is it fine for the chicks to get? When can I introduce the ducks to water for swimming? At what point do I intro the ducks to the older hens, or should I wait and introduce all the new birds at the same time? Thanks in advance!