Nearing Northern Limits

June 2- Monarchs are nearing the northern limits of their breeding grounds. Keep reporting your observations of adult monarchs, eggs, larvae, and milkweed.

Read more

Still Journeying North

May 26- Reports of monarchs are picking up in Canada. The Upper Midwest remains a hotspot of activity, but migration is slower farther east. And more reports of western monarchs are needed.

Read more

Migration Carries On

May 19- Monarchs are now moving through the Upper Midwest, southern Ontario, and New England. Migratory activity will remain high over the coming weeks. Keep reporting to Journey North.

Read more

Holding Steady

May 12- Cold temperatures prevailed this past week. Warmer weather and favorable winds should boost monarch migration through the rest of May. Keep reporting to Journey North.

Read more

Moving Northward

May 5- Migration is moving at a brisk pace. Monarchs have now been reported as far north as southern Ontario, Canada. Activity will only increase over the coming weeks. Report your monarch observations to Journey North.

Read more

Overlapping Generations and Many Eggs

April 28- At this time of the season, monarch migration is a story of overlapping generations and many eggs. With May at the doorstep, migratory activity will accelerate over the coming weeks. Report your monarch observations to Journey North.

Read more

Endings and Beginnings

April 14- No longer their brilliant orange, monarchs migrating from Mexico are nearing the end — and a new generation is about to continue the journey north.

Read more

Steady Progress

April 7- Where is the leading edge of monarch migration this week? Read on to find out.

Read more

Moving into April

March 31, 2021- In Mexico, the remaining colony of monarchs in La Salud has finally departed. Farther north, the leading edge of migration is slowly advancing, and reports of eggs, larvae and milkweed are picking up. And out West, Gail Morris provides an update on monarch activity in California and Arizona.

Read more

Monarch Migration Gaining Momentum

March 24, 2021- Spring Migration has begun.

Read more

Less Monarch butterfly presence and increased degradation in its hibernation forests

March 9, 2021- Monarch presence in Mexico’s hibernation sanctuaries decreased by 26%.

Read more

Overwintering Monarchs

Dec 16, 2020- Ellen Sharp provides an update from Cerro Pelon Monarch Butterfly Sanctuary in Mexico. Plus, a reminder to monitor overwintering monarchs in the Southeastern U.S. And Dr. Karen Oberhauser, director of the UW–Madison Arboretum, shares her thoughts on the recent monarch listing decision.

Read more

Monarch Butterfly Endangered Species Act Listing Decision Announced

Dec 15, 2020- U.S. Fish and Wildlife Service Finds Endangered Species Act Listing for Monarch Butterfly Warranted but Precluded

Read more

Numbers Rising in Mexico

Nov 4, 2020- Estela Romero and Ellen Sharp provide updates from monarch sanctuaries in Mexico. Farther north in the US, many monarchs remain on their journey. Out west, Gail Morris reports on the final leg of migration.

Read more

First Arrivals Within the Biosphere Reserve!

Oct 28, 2020- Monarchs were observed in Cerro Pelon Sanctuary on October 23, and Estela Romero reports on arrivals near the Sierra Chincua and El Rosario Sanctuaries.

Read more