I need help. This morning, I noticed my buff Orpington hen (1 year old) was very slow at coming out of the coop. She didn't eat much today, and is very lethargic. She is sitting down, and standing around in the shade a lot (it is not that hot out here). She was fine yesterday. Her comb is a mottled light red/white color, and it appears her wings are drooping the tiniest bit. The rest of the flock is fine as of right now, but is it safe to leave her with them? I checked her eyes and nostrils and I don't see any discharge. I do have a vet nearby if absolutely necessary.