I recently came across this video clip of superb quality. Posted by Naturalidades, it shows a male Pale-billed Woodpecker working on a cavity in the Guanacaste Conservation Area of Costa Rica. Press play, then change the setting at the lower right of the video box from 360p to 480p to watch it at higher resolution.
It's worth turning the volume up at your end to hear the bill tapping as it works. The bird pauses every few seconds to keep as close an eye on its surroundings as possible.