Could we see a picture of the last one that’s left? And your brooder setup?Thursday night is when they started to die,5 that night, then 5 on Friday, 1 on Saturday, and then 3 last night. I have 1 hanging in there. There is only three of us in the house all adults I’m the only one who takes care of the baby chicks as I am picky with what happens with them, we have had no visitors. I brood them away from the kitchen actually a whole different level then the kitchen. Then when we use any kind of cleaning sprays or fragrance things I put them out on my deck where it is in the high 80s still, I leave them out there for the day. The room they are in is one of my guest bedrooms where no one will go and bother them or give them something that could hurt them, if it gets to hot in there I turn of their heat lamp and then if that isn’t enough I move them to a cooler room, because I was in there a lot with them trying to socialize them I definitely would have noticed if the room temp dropped or skyrocketed. I also keep a few thermometers in the room and in the brooder just for extra measures. I would also like to point out that even when they were weak and tired they would take the water that I was giving them from a syringe willingly I didn’t have to force force any of them to drink.