so. I have (had) 4 lovely friendly bobwhite quail in a very large walk in coop. They are not too flighty as we walk in the cage all the time and many times will even "sing" while I am in there filling food and water and are right near my feet. Last night around 7 I saw them huddled and sleeping, (so I know they were alive then) and I turned on their brooder light which is sitting on top of a small wire cage they can go into, that also has a small plastic tub in there and they can go in and out to keep warm if they want- they got up and went to it like normal, chirping etc. This morning, 4 are dead. No puncture marks, I lifted them to feel weight and all are solid. Plenty of feathers, they looked completely healthy. I have had them several months. I am baffled (and very sad). any ideas? also, the cats don't really bother them and the cage is very large they could fly if they want , and if they were bothered by something on the outside they could just walk to the inner part of the cage and have plenty of room still. The cage is about 6 feet tall. The bottom half is hardware cloth and the upper half is chicken wire. I looked for fang marks in case a snake got in there but that is just me grasping for straws. Two were in the small cage where the light was and two were outside the cage, separated from one another. Yes, I do have chickens in there with them, (which were all fine this morning) but again, the cage is large and they basically leave the quail alone (remember NO marks anywhere on the quail) if it had been ONE quail, I might have suspected a chicken, but they have all lived together for the past several months and all FOUR were dead. Ok that is all the info I can think of.