I started out with 7 keets I hatched. They seemed to be doing great. They are almost 2 months old now. They are with chicks their age. 1 minute they are fine. Running around acting great then when I look again dead. In the last week I have lost 2 out of the blue. No one appears sick no symptoms of anything. I have hatched many keets and have never had this happen. I am doing everything with them I always have. If I am going to lose any it is usually in the 1st couple days. At this age they should be thriving. But they aren't. Help please.