Yeah, that sounds like the most effective way to do it. Thanks for you help. I have learned so much from everyone on this forum since I inherited all my birds. And I learn something new every day about them.You dont want to put the liquid goat wormer in the water, it's not soluble and settles to the bottom.
It's best to give it orally to each bird, that way you know they got wormed properly and effectively.
Another problem with putting wormers in water is that you dont know if a bird drank enough of the liquid to be effective or even drank it at all. Also, sick wormy birds wont drink.
There's no guesswork in giving it orally.
Good luck with the turkey's, I've never owned them. Maybe someone can help hold them for you. Same for chickens too. Someone holds the chicken for you, then you use a preloaded syringe (without needle) and pull the hens wattles down and her mouth will open. This is very important: Only shoot 1/2ml liquid wormer in her mouth at a time and immediately let go of her wattles so she can swallow the liquid on her own. If you dont immediately let go of the wattles, the liquid can go down her windpipe, then there would be big problems.