We have guineas that are about 8 weeks old. They have been healthy until recently. They are getting ruffly feathers like they are sticking out like a a frizzles feathers and they get real mopey and lethargic and then die. We have lost about 6 now. Thought they need more space so gave them more room. They have cracked corn for their food and plenty of water and grass to munch on. Any thoughts?! Thanks.