For some of my chickens i use straw or orchard grass hay in the nest boxes and coop. Which i get depends on the time of year and softness. Sometimes the hay is very stiff, like twigs, in that case i will buy the straw. i get whichever is softest. Straw is cheapest so the best solution if the bale is soft. For my hens brooding chicks, i line their nest with the hay or straw. i think it works better than pine shavings. The little chicks seem to manage just fine tromping around on it.