Pat had but a limited knowledge of the bird kingdom. One day, walking down the street, he noticed a green bird in a cage, talking and singing. Thinking to pet it he stroked its head. The bird turned quickly, screaming, "Hello! What do you want?" Pat shied off like a frightened horse, lifting his hat and bowing politely as he stuttered out: "Ex-excuse me s-sir, I thought you was a burrd!"