An Alberta woodpecker and a Saskatchewan woodpecker were arguing about which place had the toughest trees.

The Alberta woodpecker said Alberta had a tree that no woodpecker could peck.

The Saskatchewan woodpecker accepted his challenge and promptly pecked a hole in the tree with no problem. The Alberta woodpecker was amazed.

The Saskatchewan woodpecker then challenged the Alberta woodpecker to peck a tree in Saskatchewan that was absolutely im-peckable (a term
woodpeckers like to use). The Alberta woodpecker expressed confidence, said he could do it and accepted the challenge.

So the two flew to Saskatchewan where the Alberta woodpecker successfully pecked the so-called impeckable tree with no problem.

Both woodpeckers were terribly confused How is it that the Saskatchewan woodpecker was able to peck the Alberta tree and the Alberta woodpecker was able to peck the Saskatchewan tree, yet neither was able to peck the tree in their own province????

After much woodpecker pondering, they both came to the same conclusion:
Apparently your pecker gets harder when you're away from home.

I think they both took Viagra during the flight!