Two previous years we drove several hours to see migrating snow geese. There were an estimated one million geese then and I loved seeing and hearing them! We didn't make the long drive this year, but I spotted some geese just 5 miles away this week. It was not the same as seeing a million!
I caught the tail end of their migration a few years back with some photo friends and it was really impressive- but they'd seen more a few weeks earlier and kept telling me it was so much more exciting prior to that day. I can't imagine what a million would have looked- or sounded like!! Good shot.