Hello from Oregon & welcome to BYC. It depends on the coop & what you have in it. Some people spot clean with a large kitty litter scoop and others use rakes. You can compost or put in trash Buff orphs are nice mellow birds - enjoy
some people use the deep litter method where they just fluff up the litter from time to time. I don't fully understand it but, I'm sure it will come up if you put "Deep Litter method"