We took this guy's photo while it was being banded last month.
This is the second one that NJMC Naturalist Mike Newhouse and his volunteers have banded in the past two years.
Just love the colorations on its back.
Answer follows.
This is a Yellow-bellied Sapsucker. 
More on Yellow-bellied Sapsuckers here.
Finally, one that I know! That’s a Yellow-bellied Sapsucker!
When I lived in Virginia, the area around my house was surrounded by woodlands. Yellow-bellied Sapsuckers were fairly common locally. I’ve never actually seen one in New Jersey before.
I have never seen such Yellow-bellied Sapsucker. Glad to see it. All the pictures are looking great and fantastic.http://www.youtube.com/watch?v=wVHw5vTf4qQ Near my window, every evening one sparrow used to come creep for long time. I wait for that and this post reminds me.