Regarding the possible sighting of Lesser Canada Goose; It would be difficult to positively identify in flight unless good bins or a photo could definitively could show the neck ring, but it would be an exceptional rare bird tick.
I couldn't remember where I had recently read it until I ran across it again today, but the Summer 2015 issue of Living Bird from Cornell Lab of Ornithology has the following by Guy Baldassarre (John Hopkins University Press) on page 45: "...the Siberian population of Lesser Snow Goose, which researchers thought had dropped from several hundred thousand to extinction, has a relic population of about 100."
He may have seen a goodly proportion of the entire population migrating out of Siberia!
I couldn't remember where I had recently read it until I ran across it again today, but the Summer 2015 issue of Living Bird from Cornell Lab of Ornithology has the following by Guy Baldassarre (John Hopkins University Press) on page 45: "...the Siberian population of Lesser Snow Goose, which researchers thought had dropped from several hundred thousand to extinction, has a relic population of about 100."
He may have seen a goodly proportion of the entire population migrating out of Siberia!


