Help !!

[Donarry]

Hi, I noticed something is wrong with my serama chick but dont know what it is. Its perfectly active however there is a huge bulge. If anyone could help please do, this is our favourite chick and we would like him to remain alive. Below is a picture.

 

[NatalieP]

Did the chick just eat? Is it located to the right side of its chest? That's most likely its full crop