That's ok they will figure it out just clean the poop out every am with a kitty scooper, mine poop sometimes in the boxes even the big girls. I think they sleep in them too, I also have their mom with them she has taught them everything. Depending how old they are they may be getting ready to...
My hen has been by her chicks that she hatched up until now they just turned 13 weeks and she seems to be ignoring them, she is also pecking the other hens eggs and hanging out with them while the babies stay up in the coop. Has anyone experienced this?