I'm in the process of designing a 64 sq ft walk-in hen house and I'm considering the advantages/disadvantages of a "poo pit" in this size structure. It occurs to me that no matter where the poo lands it ends up having to be shoveled or raked away. Is the convenience of a slide out poo box or open pit worth the additional complexity and associated problems with weather and predator proofing? Is it any more work to walk into the hen house and shovel poo than it is to shovel poo from under or to empty a slide out? Your opinions?