Air bubble sacks

[Jedstar]

Hello. Just wandering what these big air bubble sacks around the chest area I've gotten in couple of my just matured 8 week old quails. I've never seen it before.its not normal. And another older one couple months back had it all around the head and the chest.

 

[Nabiki]

Does this sound like what you're seeing? I think this thread will help you.

https://www.backyardchickens.com/threads/air-bubbles-under-chicks-skin.1432421/

 

[Jedstar]

Okay I'll have a look