We use fir shavings for the bottom of our coop and to fill our nest boxes since its free to us and that is what we raised our chicks in. Question is what do you use in yours? Im wondering if I should try hay? Our silkie hen we bought a few days ago is used to laying in hay and has layed us 2 eggs now and she layed both out in the yard in 2 different spots in the middle of the day. 1 was probably a stress related lay thanks to my dog but I found 1 again today in some gravel where they were taking a nap at. Im gona try taking the shavings out of 1 box tomorrow and lining it with hay to see if she will lay eggs in it then...... Just looking for maybe some other ideas? Ive heard of sand, anyone use it and what were the good and bad about it? Thanks!