@2AcreFarmer My run is also covered. I didn't plan ahead and didn't think of saving my clippings, leaves, brush etc, in the fall. I also didn't realize that apparently snow falls sideways as well here! I quickly discovered that the run, even though it's 80% covered with clear plastic, still gets drifts of snow! Straw has been a great alternative for me. I just take a bale and spread out a thick swath across the run and the chickens do the rest. Whatever's left over of the bale, I store away in the shed until I need it. You'll find that it will get turned over within a month or so and you'll have to do it again. I wouldn't recommend it for wet areas, beekissed is right, it does get wet/muddy, but I've been really happy with it as a way to keep their toes a bit warmer and snow-free. Until spring comes and you have some cuttings like beekissed mentioned, straw might be your only solution. I also throw a bit of cracked corn in it every few days for them to scratch through and find. Also helps with the boredom thing. By spring, you can rake out all the composted material and put it in your garden.
As I mentioned before, you'll figure out what works best for you and your chickens. There's no magic one-size-fits-all rule, and in my personal experience (little it is, with my few backyard chickens, AND my first winter to boot!), some things that work well for some don't work for others, and vice versa. You just want to keep them dry, give them a draft free place to hide out if necessary, and fresh water and food.
As I mentioned before, you'll figure out what works best for you and your chickens. There's no magic one-size-fits-all rule, and in my personal experience (little it is, with my few backyard chickens, AND my first winter to boot!), some things that work well for some don't work for others, and vice versa. You just want to keep them dry, give them a draft free place to hide out if necessary, and fresh water and food.