Earlier I noticed my EE cockerel seemed oddly larger than he has the day before. After a quick check I noticed that there was some sort of balloon-like swelling on his chest, opposite to the crop. Well, it's more like an inflation, since the area seems to be full of air, and you can practically see through it. Strangely enough, it doesn't seem to be bothering him at all, and he's acting, eating, drinking, and pooping like normal. There doesn't seem to be any infection anywhere, unless you could consider the greenish area at the top of the 'bubble' an infection, not sure. :/ Lastly, he's rather thin, since he has a crossbeak also. Top: Towards the bottom: Anyone see this before or know about such a condition, and can help?