Fall migrations: one of nature’s most interesting mysteries
Autumn is the season of cool weather, brightly colored trees, first frosts, bountiful harvests and school Homecomings. It’s also a season of migration. Creatures that spend the summer in northern regions of North America travel south where they can have a comfortable winter. My familiarity with migration has involved two species. The first is the monarch butterfly, which flies all the way to southern Mexico. The second is the Canada geese. They go from Canada to Missouri through a fly zone that includes southwestern Minnesota. The butterflies were plentiful in 2026. I grew ...