I picked this off the NY Buffalo Rare Bird Alert of Dec 22nd ( I get a number of RBA's for the northeast)
December 18, on one of the region's many Christmas Bird Counts, a
BL. AND W. WARBLER at the mouth of Spicer Creek, off East River
Road on Grand Island. This may be the first December record
of BL. AND W. WARBLER in the BOS archives.
**
Apparently , both ends of NY State got a Black and White Warbler....kind of strange....
--Kingsboider