A worldwide community photographing and learning about wildlife
Sphyrapicus varius
Although most non-birders believe that the Yellow-bellied Sapsucker is a fictitious bird created just for the humorous name, in fact it is a widespread species of small woodpecker. Its habit of making shallow holes in trees to get sap is exploited by other bird species, and the sapsucker can be considered a "keystone" species, one whose existence is vital for the maintenance of a community.
Susan, I think this is a female yellow-bellied sapsucker. Take a look at the bottom of the page I've listed under the ID Suggestions and see what you think. Nice photo! I've only got a couple of this species even though they live around here. Neither of them are nearly as good as yours!