\'Shoot all the bluejays you want, if you can hit \'em, but remember it\'s a sin to Kill a mockingbird.\'Atticus Finch gives this advice to his children as he defends the real Mockingbird of this classic novel - a black man charged with attacking a white girl.. \'Shoot all the bluejays you want, if you can hit \'em, but remember it\'s a sin to Kill a mockingbird.\'Atticus Finch gives this advice to his children as he defends the real Mockingbird of this classic novel - a black man charged with attacking a white girl.