Tillicans
In the Brooder
That's a relief, sour crop is difficult to figure out even us humans get reflux,which to me is sour gut. I'm not familiar with Colace, I'm sure the yogurt will be a good thing to settle her tummy with probiotics. She must have eaten something bad why I mentioned about the charcoal, just get some wood and burn it and give it to her see what she does. Make sure it's not treated wood. Good news though about parasites.