Fall | Winter | Spring
Monarch Butterflies in Mexico Monarch Butterflies Migrating Milkweed for Monarch Butterflies Monarch Butterfly Nectarin

In a unique partnership, you can join citizen scientists across North America to track the monarch butterfly's spring migration from Mexico.

Spring migration begins in March. An announcement comes from Mexico when the monarchs are on their way. After living off their fat reserves all winter, tens of millions of monarchs head northward. With just a few weeks to live, they race to produce the next generation.

As the migration progresses from March through June, students predict the path the monarchs travel and map their journey north. They explore what scientists know about migration mysteries, and discover how much more there is to learn. They see the many risks the monarchs face and learn about conservation efforts underway to protect monarchs--on the wintering grounds and at points along the path. Perhaps most importantly, students participate in an annual, international celebration as this delicate sign of spring moves across the continent.

Monarch Annual Cycle
for Monarchs
and Milkweed
Your Sightings
Conservation Needs
Report Your Sightings and Track Migration
Monarch butterfly migration map Monarch Butterfly Migration Map
Report Your Sightings Share the Map

Report your sightings to each fall and spring as the monarchs travel to and from Mexico.
Track migration on real-time migration maps.
Help scientists learn more about monarchs.