I have 5 layers around 5 years old and 5 newbies around 8 months old. The older birds had all quit laying some time before the youngsters arrived. After they were feathered out and integrated into our aging flock, the older birds began to lay now and then. That is ongoing even now. We can easily tell the difference by the numbers of eggs, often 6 or 7 in a given day. Also the older girls' eggs have thinner shells, and I have caught them on the nests numerous times. I wonder if others have had this experience? I realize that most poultry growers send the older girls to freezer camp when they pass their prime, however at 'Cluckmore House and Gardens' we do not practice age discrimination. So, are there others out there who have seen older chooks become motivated and begin to lay again?