These Woodpeckers are 16-19 1/2" in length. This one is a male. The male has a red moustache on the side of it's face in line with the beak (not as red as the flaming red crest). Also, on the male the red crest starts right at the beak and goes back, on the female the forehead is black and the red crest starts after that. This shot angle and the angle of the bird doesn't show the neck and head shape well (very sythe-like), the neck is fairly long, the head is narrow when viewed from the back (fittingly, like a hammer!).
My Peterson Field Guide rates these birds as "Uncommon". This is also a first for me, to see a bird in this category. This is the Woodpecker that "Woody Woodpecker" was modelled after.