I'm thinking about getting 2 orpington hens for my backyard. I've been doing a ton of research about EVERYTHING. I love this site because it's answered a lot of my questions. Right now I'm just trying to see how to keep a small coop from getting stinky and keep coming across DE and DLM. Can anyone let me know what this is? Is it something only available in the States? I'm in Canada. Very nervous about starting this new venture. Some people I've talked with think what's the big deal...it's just chickens. No...they're animals that I want to treat with respect and care for them properly.