Redbellied Woodpecker
Here is a male Redbellied Woodpecker on the suet feeder. This angle does show a little of the red on the belly, which is sometimes hard to discern.
In spring 2002, we saw immature Redbellied Woodpeckers for the first time. In fact, we are 99% sure that we had two separate broods visiting at the same time, apparently from two pair of adults that let their territory overlap in our back yard. The immature birds appear to have no red on them at all, but in the right light at the right angle, you can see just a hint of color on their heads.
This is a better shot (the window was open!) of a male adult.