[mou] Hairy Woodpecker - Pacific Race?

[Nancy Dowling]

Hello,

I'm trying to get some information on this hairy
woodpecker that I photographed at my parents' feeder
near Green Bay, WI over the past weekend.  According
to the Sibley Guide, it appears to be a Pacific Race
of the species.  But I'm not sure.  Can you provide
any information (or forward it to someone who is
knowledgeable)?

A few weeks ago, it was more yellowish.  Now it is a
dusky tan (where it's usually white).  

Thank you!

http://f1.pg.photos.yahoo.com/ph/nancoix/detail?.dir=/Mail+Attachments&.dnm=a7f3.jpg