We don't have trees so no leaves to put in there. I don't want to do sand at this point. I need something right away and dh is resistant to sand, what with having to put down gravel first, boards all around to keep it in, etc. I mentioned straw and he said the wind would just blow it all away. Right now they are muddy up to their knees and the eggs are a mess. Any ideas? We probably have plenty of straw but the hay is bought for the cattle.