The Hairy Woodpecker is one of my favorite birds. They are a year round resident in Michigan but you will see them more often in the winter if you put out suet cakes. The bird in this photograph is the female. The male has a red crown on top of his head.
The Hairy Woodpecker is very similiar to the Downy Woodpecker except it is larger in body size and also has a longer beak. It's also a little shyer than the Downy woodpecker.