The Glaucous Gull was on the westernmost iced-over pond at HBE and was behaving aggressively toward the many Ring-billed Gulls, which it dwarfed. Going with Sibley, I'd call it a paler juvenile. It flew west after about fifteen minutes. The drake Northern Pintail was in amongst the docks just west of the little bridge and associating with Mallards. Also, I counted 26 Ruddy Ducks in the bay to the east of the little bridge.