My quail were fine when I went out to feed them this morning but when my son went out to refresh their water a little later one was laying in the cage dead. I am thinking right now that it may have been the heat. Our thermometer showed 103 today and the heat index was around 111. I think maybe it just got to hot for them. They are in a cage that is inside a shed. Window was open but it must have gotten too hot in there. (ONly 2 birds in the cage) I examined the bird and couldnt find anything wrong with it. No signs of disease or predator attack. It looked perfectly fine but was dead. The other quail seems fine but I put it in a cage outside so it could get more air. It too has no signs of illness or distress. The one that died had laid an egg this morning and had layed yesterday as well. No idea here as to what happened except maybe heat. No change in feed or living situation or anything like that. Any ideas from you guys is greatly appreciated. Thanks.