I had 6 turkeys hatch 3 weeks ago and they were all healthy and active until today. I went into the coop today and 2 of them suddenly started doing a "gagging" behavior. They open their mouth, stretch their neck and it looks like they are going to hurl, but nothing happens. The behavior is repeated several times, then they seem ok for a few minutes and it starts all over again. What is going on? Do i need to separate them? I have never had chicks hatch before, so I don't have a clue. Any kind of help is appreciated.