This page is for woodpeckers and flickers (Picidae). They are presented in alphabetical order by genus and species.
Northern Flicker (Colaptes auratus)
The final image, of a feather, shows why Northern Flickers in this part of the country were once known as "Red-shafted Flickers."
Ladder-backed Woodpecker (Picoides scalaris)
Key characteristics to look for: the banded black and white back and the light face marked with black lines. A red top of of the head shows that the individual is a male. So far, I have only two rather poor photos of a female.
Downy Woodpecker (Picoides pubescens)
Please see my comments on Hairy Woodpeckers, below. Downy Woodpeckers are distinguished (barely) by having dark spots on their white outer tail feathers, by their shorter beaks, and by being more fuzzy at the bases of their upper beaks.
Hairy Woodpecker (Picoides villosus)
If you don't see much difference between Downy and Hairy Woodpeckers in my pictures, I'm not surprised. When it comes to these two species the differences are so minor, I'm often unsure of my IDs. Hairy Woodpeckers have longer beaks and lack dark spots along the white outer edges of their tails.