I have read so many threads on what to use to de-worm chickens and how to de-worm chickens and the information is very useful and I am very thankful for the information. My only problem is that I am not able to de-worm 150 chickens by putting the medication in their water. The reason is because my chickens free range every day with geese, ducks and turkeys, so I am not able to put anything in the water because the other animals will drink the medicated water. It is VERY difficult to separate the animal groups and keep them separated for the amount of time that is needed for the chickens to drink the medicated de-wormer. My question is..........Is there any type of drops, liquids, paste, etc. that I can apply to/pour on each indiviual chicken that will kill my chicken's worms? I sure hope so. If so, please let me know the name of the medication and how much should I apply and how often. I am desparate for any information. Thanks all.