Great shot with a story Bill! I think there’s a good chance that the fox got them.
In my experience Canada geese are very attentive parents and the goslings stick pretty close.
Around here the mink, raccoons and coyotes have a field day this time of year with the young and the eggs too.
I think you are correct. Late in the day the two geese flew off after spending a little over a month tending to eggs and then 3 little ones. Thanks for your input!