Hi all, I have a small backyard flock of 8 birds. A few weeks ago my 2 year old Barred Rock started laying rubber eggs and shell-less eggs then she quit laying altogether. Since then, she’s been having strange, brightly colored, crumbly poop. I will attach a pic if I can. Behaviorally, she’s acting normally. Comb color and appetite seem fine. Anyone have any ideas what we could be dealing with? Rest of the flock is laying normally. Thank you!