Is this unabsorbed yolk?

[SweetieChicken234]

I'm keeping it dark so no one bothers it. Everyone settles down and rests when the lights are off.

 

[SkyAJK]

@Eggcessive
@Ridgerunner

These are Educators, whoever online might be able to help you.
I hope all is ok with your chicks

 

[Susan Skylark]

That would be my guess, whatever it is hopefully it dries up and doesn’t cause issues. Just don’t mess with it until it is dry!

 

[SkyAJK]

I found a previous post.

https://www.backyardchickens.com/threads/unabsorbed-yolk-sac.1604310/

 

[SweetieChicken234]

Update: chick looked worse in the incubator. Seemed he was fading fast. No change on the yolk sac. I put him with his hatch mates in the brooder and he started to perk up. Eating and drinking like a pro and the yolk fixed itself.