Male Williamson's Sapsucker-video clip 'shy bird hides after bell goes off'

This clip gives good views of the Williamson's Sapsucker as he probes sap wells he evidently drilled previously. It also illustrates how shy this bird is as my car's 'your door has been open too long' bell sounds several times (I remained in the car to avoid disturbing the bird but had the tripod just outside my open car door, with the keys out of the ignition but my car doesn't care). He stops feeding and appears to watch for the source of the bell sounds, then probes a few more times before leaving his 'out in the open' perch to go behind the tree. He then stayed behind the tree for several minutes. SeEtta