Parrots are a class of birds with complex care, handling and play needs. Inexperienced owners shouldn't adopt them without research.
While some birds do like bathing at ground level, placing your bath 2 to 4 ... tomato cage -- and, if needed, attach your basin with waterproof glue. A clean bird bath is a healthy bird bath.
A video of a parrot that spent most of his life in a "tiny cage" being rehabilitated ... the space around it for years." The bird is later shown taking a "bath" by getting himself wet in a bowl ...