My three girls (dorking, wyandotte, java) are 25 weeks old and my Java started laying at 23 1/2 weeks and is now consistently producing cute little tan eggs. My silver grey dorking laid her first egg 2 weeks ago and I haven't seen one since!! She laid in the coop and I've searched the entire thing and haven't found anymore. They roam the yard for a few hours a few afternoons a week but I haven't heard the egg laying song when they are out and we've searched the yard for eggs and nada! So, is it possible that she laid her first and only egg 2 weeks ago??!