Today at approximately 2:00 PM while in the conifer plantation in Carleton College's Cowling Arboretum I found a female Black-backed Woodpecker (the eastern part of the 'Arb' is in Goodhue County). The bird was easily approached, appeared to have three toes, did not make any vocalizations, and scraped the bark off of the White Pine it was climbing on.
Pictures will be posted at http://www.flickr.com/photos/7851430 at N06/. I can add more details later if needed. Owen McMurtrey Carleton College Northfield, MN