Parrots and songbirds learn their vocalizations from a conspecific tutor. much like human infants acquire spoken language. Parrots can learn human words and it has been suggested that they can use them to communicate with humans. The caudomedial pallium in the parrot brain is homologous with that of songbirds. https://www.littletreehouselanes.shop/product-category/mattress-protectors/