Zion NP: Little birdie

I have no idea what kind of bird this is, as I can barely distinguish a sparrow from an ostrich. Feel free to make suggestions, give expert advice or rambling guesses in the comments!

Updated: I've been informed on twitter that it looks like a "hairy woodpecker". That sounded vaguely dirty, so I followed the link to wikipedia, and lo and behold it IS a bird, although a strangely named one. So I guess that little problem is solved!

I got in over a dozen shots, but the little fucker was moving about so quickly, most of them came out blurry.