I have two chicks, one 5 weeks old and one 4 weeks old, that appear to be sick. Both are very lethargic. Both have their tails down. Both puff up their feather and hold their heads close to their bodies. They are in a "hospital wing" brooder right now. I have but some save-a-chick in their water. Yesterday I gave them a scrambled egg with applesauce and some of their medicated feed mixed in. Poop appears to be normal...not too runny, not bloody, a little on the forest green side. The 5 week old was curled up under the light with the 4 week old this morning. The 5 weeker was breathing heavier than the 4 week old. What could be wrong? What should I do? I really don't want to lose these birds...especially the 4 weeker (russian orloff that I paid good money for). The 5 weeker is a white leghorn. Please help!