Toni, you don't HAVE to potty train your grey, but some of us do so we don't have that stuff running down our shirts all the time. Some greys won't poop in their cages, they want to keep them clean, like not pooping where they live, but if you get one of those, you will have to be dilligent about not leaving it in for a very long time or it could hurt him holding it all day. My Josey is happy to poop in her cage and that is all right by me, but when she is out on me I watch for the signals and hold her over a trash can and she will go in it. You don't need a special potty basket, any old trash can will work.