Yeah, now that I listen to it, he's not singing "with door of ivory."It's odd. She's trying to bribe the bird with a spectacularly beautiful cage, so why would it be "in need" of anything? In need of polishing? ;-)
Well, I'll go with the "door of ivory" when I play it. And I'll probably add the stanza that clarifies who's speaking. But any other guesses on what Dick Justice is singing would be fun.
B.