Thank you for your replies though. If it happens again, I will have more Information. I really don’t understand why his skin was filling with air as he suffered no knocks and seems to be born like it. I did help him out the egg but was so so gentle, I barely touched him and he kicked out himself. The yolk sac was all absorbed. His beak was quite bloody though before I started to help him. It looked like the beak itself had blood rather than anything else. Sadly I just think he wasn’t right from the start and I just hate the fact that I didn’t know how to save him.