If I note where mine are perched in the evening, then in the morning I know which poop pile came from which bird. Does your setup allow for that? If so, you'll see in the morning what she did all night.I have seen one poo yellowish in color yesterday ( can't stand out there all. Day waiting for her to poo so that's the last poo I have seen from her no idea is she has pood more)
Edit| her poo is 100% normal