In advanced thank you all for the help. So a few days ago I had just got back home and I was checking on my chickens to see if they were all ok. While I was looking at my 2.5 month chicks I realized one of them wasn't there. I looked all over the pen for her and couldn't find her. I looked in the hen house to find her dead underneath an older hen in a nest box. She was completely healthy the day before and I just assumed it must of been a freak accident in the nestbox with the older hen. Now we come to today, this morning I was walking outside to check on my chickens again and as I was glancing across the pen I saw another chick dead in the middle on the pen. He was also very healthy the day before and I have no clue what happened. I'm just worried this will happen to my other chicks they are all acting fine and are all healthy but so we're the dead chicks before they died