Amazing! Never saw anything like this! Where is it?
Loess Bluffs NWR in the NW corner of Missouri. The snow geese migrate through late fall and early spring - spring (the birds think it's late February, I disagree) is the most impressive. It's not just a sight, it's an immersive experience. They had actually been at their peak about a week earlier than we were there this year because we'd had an unseasonably warm spell; when that happens, they don't hang around as long. But it's always worth going.