Back Away Slowly

My goodness, what is this hanging off of my suet feeder?  He is way too big to be balancing up there.  This first photo is not the most flattering, but it did catch my attention.  I see that he is a big bird, larger than the downy woodpecker that usually visits, but closer in size to the red bellied woodpecker.  But he/she is not a woodpecker.  He stops for a brief moment to shake off the