Mr. Praline: Look, matey, I know a dead parrot when I see one, and I'm looking at one right now.
Owner: No no he's not dead, he's, he's restin'! Remarkable bird, the Norwegian Blue, isn'it, ay? Beautiful plumage!
Mr. Praline: The plumage don't enter into it. It's stone dead.
Owner: Nononono, no, no! 'E's resting!

The dead parrot sketch, Monty Python