hard hats required

A little Female Downey Head Woodpecker woking diligently on construction of a fine new home.

She frequently checked her work to make sure the hole was just right on all sides

Then quickly got back to work.

No hard hats required in this construction zone but a well adapted skull like woodpeckers have helps keep their brains working after a hard days work.

http://www.livescience.com/19586-woodpecker-skull-concussions.html

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