Uh oh. Same problem here, except mine are rescues and too stupid to even go UP to the nests so I gave them nests on the ground, planning to raise them bit by bit.
They suddenly started laying anywhere on the ground and eating them! The RIR lays up in the nest and rarely eats hers.
I can't afford to keep chickens who don't lay, but being former "caged" farm chickens, I can't just let them go free range. They'll be killed in no time!
I'm interested in any replies you get also./ Nancy