I have a RedStar at 13 weeks. Found her in the corner, very low energy, possibly dehydrated. Both eyes kept closed, even when handled - all other spook as I have 40 and they are not handled as pets. Black dried 'crust' from 'ear' area. The local weather dropped 15 degrees this week - kept in their coop with 300W heat bulbs, but still gets cool to 48 overnight. Hydrating now. Brough into house (to warm). Eyes shut. Crusty. Slow breathing, Clean vent. Good feathers. No desire to eat/drink although MUST be hungry/thirsty. Please help, suggest care/treatment/diagnosis. Pictures as soon as phone/mobile site allow.