So I have a small flock of young turkey's, we got them at just 4 weeks old, no health issues or anything. They are now just over 3 months old now and last night one was on the roost and had its feathers fluffed, it was late at night,!just a night check, so I figured it was sleeping. Today I went and checked and it was dead! All others look healthy and are eating and drinking. We had switched feeds, but it was gradually changed. Tonight none of the others looked at all lethargic, they are all full of energy and talkative. We did just have a few days where the weather was in the 60s, then went into the 40s and 20 at night, now it's back to 70 degrees, could it be the change in weather?