Is this a Red-naped Sapsucker (Sphyurapicus nuchalis), or a hybrid with a Yellow-bellied Sapsucker (S. varius)? Birders say both are possiible. These photos are being submitted to Matthew Dodder and other experts to see if the photos are enough to tell. A Sapsucker forages on a dead Valley Oak at Jasper Ridge. 9/28/2021, about 8:30 am.