Red-Headed Woodpecker

I learned all sorts of interesting facts about these on whatbird.com including:
The Red-headed Woodpecker forages for food rather than excavate holes to find insects.
It is the only woodpecker that covers its cache of food with bark or wood. Grasshoppers are stored alive, wedged so tightly in a crevice escape is impossible.
A group of woodpeckers has many collective nouns, including a "descent", "drumming", and "gatling" of woodpeckers

Their numbers have been declining and are now "near threatened."