Junco hyemalis oreganus
Many of the Dark-eyed Juncos are colored in a pattern that makes it hard for me to say what subtype (race) they belong to. This one is an example. This bird's sides are pinker than some of the more obvious Oregon Juncos, but it's hood is not as light a gray color as I expect for a clearly-marked Pink-sided Junco. My guess is that this bird is a female Oregon Junco.