We are getting our very first batch of ducklings next week! Starting out with 5 little girls, and I'm hoping to add a pair geese to the mix eventually. started building my 4'x8' duck house, and it's going very well. I'm planning to build a 20'x15' run, but I have some questions: I live just north of Seattle, and I'm not sure if my climate would permit me to do the deep litter method... What do you guys put in your runs? I'm hoping to not have to roof the whole thing, or any part of it for that matter. I was thinking of maybe sand, but wouldn't that be costly?