Please help me find out what is wrong with my RIR Bantam chicken, Tyson. He or she, not sure yet, is about 12 weeks old and sickly. His comb and wattles are pale, perhaps even somewhat cryogenic in color. He stands with his head AND rump pointing downwards. His eyes are dull, feathers fluffed up and has not been observed eating or drinking for 1 1/2 days now. PLEASE give me some suggestions that I can try out on him. He is not vac. for Mareks disease. No other birds are affected as of yet. They coop with fancy pigeons at night if this matters. THaNKS in advance for your help.