Sorry with redundancy of another post on worming your birds, but I had a couple specific questions that I didn't see in any other posts. I have raised birds before, but this is my first year raising pheasants (Ringnecked trio), and in turn is my first time raising birds on the ground; all others have been raised on wire. I have never wormed them before, and they were hatched in May of this year. So I am assuming this is the correct time of year to do it? Does Food Grade Diametacious Earth added to their food deworm them ( Just wondering because I currently have some)? Or is that only for parasites? --- If not, I would prefer to get something that can be added to their water, I don't want to attempt . to give it to them in a needle, because I don't see that working out too easily. The 2 main feed stores I have in my area are Southern States and Tractor Supply Co.. Is there a brand carried at one of these 2 locations that you would recommend? I am only in need of treating 3 Ringnecks, so preferably something that comes in a smaller container. Thanks in advance for any input.