My grandfather used straw in the chicken house and shavings in the brooder house for bedding. Don't know what what his reason for the shavings in the brooder house were, he grew the straw. And the straw can mat very well. it was a chore to clean the chickens pens. I use wood shavings in my coops for bedding, work in a wood shop can't beat the price. And my straw for the nests.