Yikes! I'm glad to hear your quails aren't getting hurt. Mine lose their head feathers and one has a scab on its head that keeps healing and then opening up (from flying upward again). Last night, I tried switching to a night light because I was afraid the desk lamp I'm currently using is too...
I've been having the same problem. The quails were getting spoiled at night even though they are inside. Their heads were getting ripped open every night. I ended up leaving a small desk lamp on and it seemed to have solved the night jumping issue. My girls haven't laid eggs since though. I'm...