I live in the woods, and my Silkies stay outside. I have a nice coop for them (a converted shed) and a covered, enclosed run. I have foxes, raccoons, and a pair of Coopers hawks that live on my property. I regularly find bear poop in my driveway. Oh - we have a big ol' king snake we call Homer out here, too. And coyote, bobcat, owls, possum, skunk and the rare-but-still-around wolf and mountain lion.True. They stay outside a lot, but I have a lot of wildlife here that is crafty. Including rodents and hawks. So it's a juggling dance, but worth it. The silkies are just too small and trusting for all night out here. I'm too fearful of what may happen. Foxes, raccoons, rats, hawks, dogs, and other critters. Too risky. So, in they come each day as the sun comes down. Thank you for your opinion. I wondered since I had a dark-brown pet rat that I had as a youngster with an interesting natural musk smell compared to the blonde fancy rat friend it had which had no musky smell. I wondered if it was a similar thing. I guess not. Hmmm. One never knows. I never really gave it much more thought until lately.
I sleep well at night because 1) I know my birds are safe, and 2) I don't have to smell poop all night long. You will be much happier without smelling them, too.
(Full disclosure: I am brooding 2 Leghorn babies in my bedroom at the moment to keep my cats at bay, but the chicks don't stink. And they'll be outside full time in a few weeks.)