i have everything set up, a section of the big chickens run, cut off for the littles, a feeder and waterer upgrade, plus grit and all the things they need. One thing i dont have is a "chick coop" or a shelter for them to roost in at night. I dont want them to outgrow it, however i want it to be something small and diy so i dont have to spend any money. another question is, when can i start letting them take dust baths? and what can i use? the littles are fully feathered so i assume they need to take care of those new feathers!