Pale yellow poop

[Chiggums]

First time chicken owner here. My 1ish year old silkie hen dropped a very pale yellow runny poop this morning and I'm not sure if I should be concerned. She seems to be acting normal, but after having lost 2 girls to Marek's, I'm paranoid. Thoughts?

 

[azygous]

One poop is not diagnostic. If this is the only kind of poop she is producing, though, it may indicate bacterial infection, especially if she begins to act sick. If she is becoming symptomatic for Marek's, she will also begin acting sick.

As long as she continues to behave normally and if this poop is merely intermittent, I would just keep monitoring her.