Awaiting Monarch Arrivals on the Dia de Muertos

November 1, 2023 by Nancy Sheehan, Program Coordinator

Today marks Dia de Muertos yet the Eastern population of monarchs has not yet arrived to overwintering sanctuaries in central Mexico. We eagerly await news of their arrival. Monarchs are increasing at the coastal California overwintering sites as they reach the final leg of their journey.

Pedro in Saltillo, COA (10/17/2023)

Eastern Monarch Population

Today marks Dia de Muertos. In previous years, November 1st has traditionally heralded the arrival of monarch butterflies to their winter sanctuaries in Mexico. Over the past week, Ms. Estela Romero has been eagerly scanning the skies for monarchs, but she only spotted a few yesterday and today. Correo Real/Profauna has also expressed concern, especially given observers in the Mexican states of Guanajuato and Querétaro, located approximately 150 km from the Monarch Butterfly Biosphere Reserve, have not reported large numbers of monarchs. We are hopeful that we can bring you news of the monarchs' arrival very soon.

Read more in the Eastern Monarch Fall Report #6>>

Western Monarch Population

Gail Morris shares in her report this week that monarchs are appearing in all western states, and the first monarchs are arriving at the northernmost California overwintering sites.

Read more in the Western Monarch Fall Report #5>>

Please Keep Reporting

Please continue to report any monarch activity you observe to Journey North. Your reports provide valuable information about monarchs and their migration.

Thank you!