It's gross. Every third or fourth trash can full, I sit on a rock with my back against the tree and catch my breath.
After it is clean down to the plywood floor, I add fresh shavings in the nesting boxes and on the floor.
Throughout the year, I scoop out wet shavings and chicken poop from the nesting boxes and toss it on the floor. By the following fall, it is quite deep. Some of the chickens roost on the ladders Brett built, but some of them sleep (and poop and pee) in the nesting boxes.
The chickens are molting right now so we aren't getting many eggs; some days we get one; some days none. When the chickens molt, they loose all their feathers and grow in new ones. The floor of the hen house was covered in feathers before I cleaned it out.
While the chickens are molting, all their energy goes into growing new feathers. They have no energy left over for laying eggs. The process can take three months. Our beautiful chickens look pretty ugly during the process; like they got in a fight with a coyote or something.
Fortunately, they don't all start and stop at exactly the same time. But, they all molt October-ish so that is when the egg production plummets. We have two hens that hves finished the process and they are gorgeous, with shiny new feathers. One of them is pictured, snuggled into a nesting box, above. She layed an egg right after I took her picture. I'm hoping the other chickens finish up molting soon as well. We are running mighty low on eggs.