Bird goes poop in the sink on command

This is Destiny. He's a 2 year old yellow double headed amazon parrot. He's one of the smartest parrots on earth that can talk and he can do tricks and he poops on command. Today I ask him to poop and he did it in the sink. After pooping we were all so happy and cheer him on. Also his little red headed girl friend Faith. She's a mexican red headed amazon. Now every time i ask him to poop. He poops.