I can't remember seeing anyone report on the a Great Grey Owl in
Vermont. Perhaps I missed it.
However, I have received a sighting at Westford Swamp from a student of
mine of a Great Grey on 3/14/05. Also, two friends of mine saw and
photographed one (I've yet to see the photos) in Stowe [near Trapp
Family Lodge, I believe] about three weeks ago.
Thought I'd mention these while I am tracking down further verification.