I have a leghorn chicken in my flock that is 10 months old and has never laid an egg. She will act like she will but still never has and i know she is not hiding them because i held her in the run for days to see if that was what was happening but no luck she simply has never laid an egg. She recently has started to lay down all day and stay behind from the rest of the flocks daily activities roaming my yard and foraging she just wants to sleep. Its been going on for about two weeks. She is still eating and drinking water though. Anyone know what could be going on?