Most of my girls are 16 weeks old, with a few 17-18 week olds mixed in. I just put in next boxes 2 days ago and filled them with hay. They keep eating all of the nesting material! I've refilled them at least 4 times already! They have PLENTY to eat -- homemade fermented feed, kitchen scraps, weeds from the garden, slightly mushy fruit/veggies, etc. They have SO much food, I don't know why they keep eating all the hay. Should I try to give them extra greens, or even another pile of hay in the run to eat? Will a second pile of hay confuse them whenever they start laying?