I photographed this northern flicker at Sylvan Lake State Park in Colorado. It’s the only woodpecker that commonly feeds on the ground. It also has the odd distinction of having over 100 common names, including yellowhammer, clape, gaffer woodpecker, harry-wicket, heigh-ho, wake-up, walk-up, wick-up, yarrup, and gawker bird. Most of the names are attempts at imitating its calls.