I hatched button quails on 6/3 and 6/10. Quite a few of them sold, leaving me with 3 from the 3rd, all of whom have survived and then 8 from 6/10, with 4 of them just dropping dead this afternoon. They were on their sides, legs stretched out, dead. They are in a small tank, with light that has been warm enough to keep them active. They have a quail waterer and none have drowned. When they first hatched, I gave them very tiny millet spray from finch and they have done well with it. I also had ground up turkey pellets. But, a couple of days ago, I purchased Purina Layena gamebird finely ground crumbles and that is the ONLY change I have made in their routine....could it have killed the younger birds? I continued to give them their well-loved millet spray and for the past week have added small amounts of finch seed. They are on Wee Wee pads with a screen top. No power outages, drafts or other variables. They are in our dining room and I saw nothing odd in their droppings. What changes would you experienced quail keepers recommend? I am going to remove them, give them a brand new tank and a new waterer, so there will be nothing left over from the other set up. But, I have a feeling it has something to do with that Purina feed for some reason? Not sure. Actually, I bought the feed at my feed store and it was in a baggie without any tags. The owner said that it was the same as the Layena, and I bought a 50 pound bag of Layena AND the smaller bag. Maybe it was a different food? I doubt it because they have been feeding the same thing to their buttons. ?????? I hate it when they die.... Are they particularly sensitive to anything except cold and fast temperature changes? Thanks for any help or information.