Although not a real chook, "Grip", an integral character in Charles Dickens' novel Barnaby Rudge, was based upon a raven Dickens experienced being a pet at the time he was composing the novel. Researchers at the University of Alberta located a correlation between the dimensions in the cortex as well https://brooksupkdx.blog2freedom.com/17087778/talking-birds-for-sale-things-to-know-before-you-buy