Early today everyone was fine then the last time I checked one of my roosters ( the smaller one) seemed tired and he was easy to catch, to easy, combs blue ish and having difficulties breathing. Checked him over, can't feel or see anything wrong, feed him water and now I'm just keeping him in the house to see if it gets better. But my first reaction was to go for the axe. Noticed the other rooster the head roosters the very tips of his comb are a bit blue. Could dust from hay cause this?