I have a similar question:
Of the 3 hens I have, only one has been laying.... She's been laying about an egg per day for almost 2 weeks now, but the other two haven't lain any that I know of. I have 4 nesting boxes and the on layer has tried out 3 of the four, but has been consistent in the same box for the past 8 or so eggs. I wouldn't peg her as the most mature of the group, all were bought at the same time, at the same place and she is not the biggest or the first to explore things...
Do I just need to wait it out?
One of the non-layers is the same breed as the layer...