Think that separating Yellow-bellied from Red-naped Sapsuckers is a piece of cake?

Both photos are of the same sapsucker just taken with different cameras on the same day. I took the photos from my car that was parked about 35-45 feet from the bird. When I looked at the bird with my binoculars I felt sure this was a female Yellow-belled Sapsucker. This is about the view I had in my binoculars. What do you think? (do not enlarge the photos) SeEtta