Could be worms even. I’d give a dewormer just in case and do look over for mites if you think it could be that. At 3 years old their egg production will be slowing down but not completely stopping. My birds sometimes start their molts early and cease laying for a while but July is a bit too soon and they’d probably be done by now if that was the case. I’d actually try to get them more protein right now since it sounds like there could be something going on.That’s what I thought. They really haven’t laid eggs during the summer either. In the beginning of the summer we were getting 2-3 but by mid July til now, everything stopped. I don’t remember the exact brand of pellets they are getting. I keep them in a container. I think it was Parina but I’m unsure the % too.
What is the best brand they should have? Could they have mites or something??