This is exactly what I do with mine , hugs from usWe've been parrot trained - Dora will not poo in her sleeping cage but always wants to go up to the kitchen cage. She is encouraged to use her perches or cages, but will often poo wherever she is and we just clean up immediately. If she is sitting on my shoulder or knee I know when she wants to go as she fidgets and has a specific squeak, so I take her to the nearest perch or cage, works most of the time but there will always be accidents.