The first thing is your set up is all wrong your chicken coop should be bigger and off the ground and the floor should be wood with air holes for fresh air on the sides of .box size should be 4by4 feet .outside pen ten ft.by five ft. I know this will help
Even though there is fresh shavings...
the size of the space you show in your picture is to small for chickens !!.
the air vents have to be large because chickens produce alot of waste
make it easy for you to clean because you will be cleaning it every other week
HELLO SEE YOU HAVE ALOT ON YOUR FARM WHEN DO YOU HAVE TIME FOR YOUR SELF
YOU CERTAINLY BUY ALOT OF ANIMAL FOOD TO FEED ALL THOSE ANIMALS ON YOUR FARM
I DONT HAVE BUT 5 CHICKENS AND I GET GREAT EGGS EACH DAY