I went out to the quail pen this morning and 1 breeder hen was down. Egg bound. I noticed blood on the droppings pan yesterday and checked each of the birds that hung out in the area. Couldn't find a problem. This morning one looked off (her eyes were off). Still didn't see what was wrong. A few hours later she was dead and her egg was partly out but not releasing. I broke it out of the membrane, but she was already dead. She was my largest girl. So is this common? The temperatures have been in mid 90's with heat index 105 or so for over a week. I've been changing out water 3-4 times a day. Adding ice bottles as well. Quess this a good reason to keep a few extra's for replacements.