I have 8 Dark Cornish hens that were laying when I got them in August and then quit within a week or two. Then I got one consistently for a while then nothing. BUT I followed someone's suggestion of giving them some Calf Manna and Lo and Behold! After three cups of Calf Manna in the last few days and I got an egg! Woo Hoo!!!! Let's hope it works on all of them and they all kick into gear.