Hi Andrew
You bird sounds likely for Japanese Yellow Bunting. In addition to the eye ring, which is certainly a good feature, the whole facial expression is gentler than Black-faced, as there is no hint of a supercilium. The head is also an olive green which is usually a lighter and yellower shade then BF Bunting.
A very good run of records for your neck of the woods!
Cheers
Mike K
Mike KilburnVice Chairman, HKBWSChairman, Conservation Committee