I have 9 week old ringnecks and two of them aren't looking too good. Two days ago I noticed one wouldn't move from below their shelter and I was able to easily grasp him with no fight. I took him home as I thought he might be overheated. Since then he hasn't been able to get up, but he is eating and drinking. His legs seem paralyzed as he won't move them. The next day a female was very lethargic, so I took her home also. She's a little better but can't stand well. It's been pretty hot here lately and I added a solar powered fan to help them cool off. The others I checked on this morning and they're doing fine. Any suggestions? I have chickens that free range close to them, but they are separate.