Mucus Milky White poop chick

[likkatron]

I have a salmon faverolles chick about 3-5 weeks old (how to tell using feathering because they're molting) She drinks water, eats (though not as much) is active, not always sleeping. She doesn't seem sick, and still follows and sleeps with others. The only problem I'm noticing is the poop. When we first got her she had watery poop with some solids, and since yesterday I've been noticing all milky poop. I'm a newbie and don't even know where the crop really is, what to feel for, and how to tell if it's swollen.
Minus the poop she seems completely healthy.
She is staying with chicks only 5-7 days old do it is fairly hot. The feed isn't medicated. And I gave them electrolytes in their water the first few days after the long drive.
(No pictures right now but I can post if needed)
I already lost one chick to an illness, my only other faverolles, don't want to lose this sweetie, please help!

ALSO PLEASE DONT POST THE LINK OF THE POO CHART, THE POOP SHE HAS IS NOT ON THERE AND NOT HELPFUL AT ALL!

 

[likkatron]

Help please, already lost one..

 

[Eggcessive]

The white in the droppings is urates (urine) and if she is drinking a lot or not eating as much, she could have runny droppings. Since she is acting fine, I wouldn't worry, unless she becomes lethargic, hunched or puffed up, has diarrhea or blood in the droppings, and refuses to eat and drink. Then I would consider treating with Corid or amprollium for possible coccidiosis. Try some probiotics in the water or a small amount of plain yogurt or cottage cheese to firm up the droppings. Feed some chopped egg to get her to eat more protein.