it's too far to walk (there)?

Q: Why do birds fly south in the fall?

A: _________________________.

Which of the following sentences should I use to fill in the above blank?

(1) Because it’s too far to walk!
(2) Because it’s too far to walk there!

(2) is better.

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But (1) is the usual punchline. :wink:
articles.latimes.com/2006/aug/03 … t/et-pint3
wildbirds.com/dnn/AboutUs/Bi … fault.aspx
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Yes, the shorter the funnier. It gives the joke teller time to run away before being hit with an ashtray.
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