I'll let Robert tell about his photo. He wrote, "Just off our deck is a Douglas-fir with lots of tips. This guy appeared the other day, flying in with that classic woodpecker dip and dive flight pattern. We also have a Bishop Pine nearby that woodpeckers like to dig for bugs, and a couple of Tan-bark oaks not too far away where he can find acorns, so I think he was looking around to see where to go next to feed.
"I loved his bright red head and white body markings. Acorn Woodpeckers are very striking to my eye, with a large and really powerful beak."
I love their call. It is very distinctive and sounds like no other bird. To hear it for yourself, here's the link to the Cornell Lab of Ornithology: http://www.allaboutbirds.org/guide/acorn_woodpecker/sounds
I thank Robert for his photo and his story.