So I have 9 chickens that are 20 weeks old that I have raised since 3 days old and no one has laid eggs. I have: 1 leghorn, 2 buff orpingtons, 2 Delawares, 2 rhode islands, 2 Americaunas. I have them on a quality layer feed, I offer grit and oyster shells, they free range on 1/2 an acre everyday. I also bought those fake ceramic eggs to put in their nesting boxes (12 boxes total). I just don't know!!! Is it possible for every single one to be a dud?! What on earth am I doing wrong? What more can I do? One of the Delawares slept in a nesting box last night instead of the roost with the rest so I skipped out this morning to be disappointed, this ones been making a lot of noise too.