I have a year-old bantam hen that has never shown any signs of poor health. But about a week ago she started showing signs of lower energy. She has been eating and drinking, but is less active and quieter than normal. Today I saw that her face is blue. It's usually a pale bare skin. Her comb and wattles have always been very, very small and pale, so I don't see any noticeable change there. But the dark face is abnormal and of course the depression and lack of energy is also abnormal. Her eyes are clear, her skin other than her face is normal. Any ideas? This may or may not be related, but I lost another bantam hen a few months ago - a 4 year old that had been robust. She had the same gradual drop in energy and then just died. But in her case her comb was purple and shriveled and I didn't notice a change in facial skin.