I have a cockerel who is hanging in there, but I just don't know what to do any more. He has no other symptoms other than being off balance, his crop is empty all the time, and he breathes out of his mouth sometimes. When I hand feed him, every now and then I'll feel his crop empty, and a puff of air will come out of his mouth (nose if his mouth is closed). At first I thought he had gotten too cold (all started when we had our first cold nights), but he has been in the basement nice and warm for the last month or so - no real improvement or decline. He is eating/drinking on his own, and his poop is perfectly normal. I'm sure his lethargy is partly due to the fact that he is so skinny, but like I stated, I can sit there and feed him, feel his crop filling up, then he'll "burp" out air, and it's like I didn't give him anything. Right now he's getting his normal purina grower, water, vitamins (1-2 drops on the beak/day), and yogurt. He is nice and cozy in our basement separated from the rest of the gang. I'm just pulling my hair out at this point... I don't want him to be suffering, but he doesn't seem to be in pain, so I hate to give up on him. All of my other chickies are fine - no anything wrong. ANY ADVICE/IDEAS would be GREATLY appreciated!!!!!!!!!