Diagnose Yellow Poo

[Pickleweed]

Need some help diagnosing some poo.
One of my chickens has been pooping this weird yellow stuff every night.
These birds are about 20 weeks old.
I know at least a couple of them are laying right now since we get about 2 eggs a day.
Not sure if this one is or even if this poop is related to that.

They are only eating flock raiser feed, oyster shell on the side and grit on the side. They do free range some during the day.

Can anyone tell me what might be causing this?

Thanks

 

[Yardfulla poopers]

Have you wormed the flock recently?

 

[Pickleweed]

No have not wormed them at all.

 

[Eggcessive]

It may be yellow do to yellow urates possibly from a liver problem. Are you feeding any extras or scratch in the diet? I would continue to watch for this.

 

[Pickleweed]

They get black oil sunflower seeds and sometimes Kale or pumpkin.