A slight correction in the interest of assisting the gull searchers:
I'm pretty sure that Tom and Donna Gooley, the posters who reported
observing the ivory gull on Tuesday to the NNY listserv, are the folks Bill
and I met in Rouses Point on Tuesday. We all observed the gull FROM the
marina, not AT the marina. The bird was seen atop a piling in the lake, on
the Vermont side of the channel. Because of the position of the afternoon
sun, the marina was a better vantage point from which to view the gull.
I hope this helps.
Essex Jct. VT