I have 6 red sex link hens that hatched on May 20 this year. 6 months later, no sign of eggs. Environment seems fine/normal (though I'm new to chickens). Constant access to feed and various scraps(nok GMO layer feed since about 18 weeks). Is 6 months old and no eggs unusual for red sex links? My impression was they would lay earlier than that. Attaching a picture of the ladies from this morning in case that's helpful in answering.