From Metzer farms: Typically it is better to add clean bedding on top of the old bedding instead of removing the soiled bedding every day. This reminds me of the deep litter method I know a lot of you guys use for your adult birds. It also reminds me of wifezilla's double decker brooder where the bottom portion of the brooder was filled with wood pellets and she stirred them periodically. The top of the brooder though had a metal mesh and a shelf liner on top, so the ducklings weren't walking directly on the pellets. Is there a reason not to let the ducklings walk directly on the wood pellets? What if I misted them first so they'd be a little fluffier? or put a little straw on top? Will they try to eat them as they disintegrate? Can I just keep adding more pellets as the pellets start to get moist? In about two weeks I'm getting four runner ducklings and I want to be ready.