The annual migration of North America’s monarch butterfly is a unique and amazing phenomenon. The monarch is the only butterfly known to make a two-way migration as birds do. Unlike other butterflies …

Monarchs east of the Rockies migrate each year to the Transvolcanic mountains of central Mexico. Millions and millions of butterflies from the central and eastern Canadian provinces and the eastern …

We hope you enjoy this interactive map which shows the amazing migrations of monarch butterflies. You can see where they fly, the urgent threats they are facing, and how your support is expanding …

13 Apr 2026 · The monarch butterfly migration is the seasonal movement of monarch butterflies between their breeding grounds in the United States and Canada and their overwintering sites in …

Monarch butterfly migration is the phenomenon, mainly throughout North America, where the monarch subspecies Danaus plexippus plexippus migrates each autumn to overwintering sites near the west …

26 Dec 2025 · The monarch butterfly migration is one of the most remarkable phenomena in the natural world, as millions of butterflies travel thousands of miles to reach their wintering grounds in Mexico.

6 Feb 2025 · Every year as it gets colder, North American monarch butterflies migrate south between August and October. Monarchs that spend the summer breeding west of the Rocky Mountains tend …

23 Apr 2025 · Each year, a “super generation” of monarchs flies up to nearly 3,000 miles from the northern United States and southern Canada (where they breed) all the way down to the Monarch …

15 Mar 2026 · Follow the monarch butterfly migration month by month, from winter roosts in Mexico to summer breeding grounds and back again.

At national wildlife refuges along the monarch migration trail, excitement builds early. Every fall, monarch butterflies fly thousands of miles from as far north as Canada to overwinter in Mexico.