Kingston and Ottawa are unfortunately too far west to enjoy much of the Greater Snow goose migration.
To see the big flock in Ontario one needs to travel to east of Cornwall. every spring there are small flocks that do show up just east of brockville and just se of ottawa. However the greater Snow goose migration for the most part stays south of Ontario. 10,000s of Snows do come through eastern Ontario ( out of over a million snow geese).
I have family nw of Montreal so I always time at least one visit for this spectacle. Usually I do not see the first snows till the Morrisburg-Long Sault area. Then the numbers build up to the anywhere between 5 and 20,000 snow geese foraging in the fields just north of Lancaster Ontario(right at the Quebec border).
To real see the spectacle one has to travel 90 mins east of Montreal on the south shore of Lac Saint-Pierre, I was there the first week of April last year and had 57,000 Snow Geese
Here is a link for this area
http://www.stlawrenceriver.ca/slr-geese.html