Hi all, I am pretty new to this. I read that worming twice a year is needed for Ducks and Chickens. I have 6 Chickens and 4 Runner ducks, all between 1 and 3 months of age. My questions are: At what age to you do the first worming? What is best to use? Can Chickens and Ducks have the same worming meds in the same doses if they are from breeds of similar weight? Any other pointers would be greatly appreciated.