A Hawaii woodpecker

A Hawaii woodpecker and a California woodpecker were arguing about which place had the toughest trees. The Hawaii woodpecker said that they had a tree that no woodpecker could peck. The California woodpecker challenged him and promptly pecked a hole in the tree with no problem. The Hawaii woodpecker was in awe.
The California woodpecker then challenged the Hawaii woodpecker to peck a tree in California that was absolutely un-peckable. The Hawaii woodpecker expressed confidence that he could do it and accepted the challenge.
After flying to California, the Hawaii woodpecker successfully pecked the tree with no problem.
The two woodpeckers were now confused. How is it that the California woodpecker was able to peck the Hawaiian tree and the Hawaiian woodpecker was able to peck the California tree when neither one was able to peck the tree in their own state?
After much woodpecker-pondering, they both came to the same conclusion:
Your pecker is always harder when you-re away from home.