Hm, 25 weeks still isn't the latest I've heard of hens laying and actually I've heard 28 weeks is a normal late layer...there are folks on here who are 31 weeks and still waiting on their girls. I got lucky all mine layed before week 21.i have one red sex link hen that im planing on getting rid of shes 24 or 25 weeks old and no egg from her. she just stairs at her three sisters while they lay. they have ben laying since they were 17 - 18 weeks old. im going to an animal swap on thursday. to get rid of her and get two more to make 10. it might end up being 4 so i have a dozzen hen. darn chicken math. even i cant stay away from it. ive already had to add on once. i fist planed on four hens. right now i have 9.