I've been nursing one of my quail after a serious head boink. He was very poor for about a week (unable to walk or hold his head up, falling over on his back, uninterested in food or water). After one week, he started to improve, and for the last few days has had a voracious appetite. But today he is weak again, and panting slowly but heavily. He has eaten some on his own, is able to hold his head up at least, and swallowed a little water I've offered through a syringe (but shaken most of it off into my face). So he hasn't quite reverted, but it's a huge, negative difference from yesterday. Is this panting, and if so, why? If not, what is it?