I realize my setup is a little different, but Felix has a branch he perches on and very rarely poops on, his bedding is Granular Sweet PDZ that I scoop with a kitty litter scoop almost daily and about weekly go through it with a fine mesh sive to get any uneaten food and such out (I have found he burries some seeds and sprouts them in his bedding...) I plan when I make him his outdoor area to have the coup part with a few inches of PDZ and the "run" area being wire floored so the poop falls through.I find the nylon mesh feed bags in areas where poop collects to be the answer to frozen poop. It just peels off in freezing temperatures. A tarp would also work equally as well.
View attachment 1230701