Woodpecker

From Yosemite National Park:

There are twelve species of woodpeckers that have been known to occur within Yosemite National Park. This guy was spotted along the Lower Yosemite Fall Trail last week. Do you know what kind of woodpecker he is? You can narrow down your guess by referencing our bird list at http://www.nps.gov/yose/naturescience/upload/yosebirdchecklist.pdf.

We'll post the answer later today!