A few weeks ago I attempted to photograph the Greater White-fronted Goose
but my camera's auto focus was malfunctioning. Tonight I did locate one
photo that can at least be used for ID purposes and put it on my site here:
(Note that this goose and the surrounding Canada Geese had just flown in
from somewhere evidently quite muddy - this goose's bill color appears
duller due to the dried mud.)
Walter and Nancy, thanks for the additional insight on the goose hybrid,
it is sincerely appreciated!