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Monarchs arriving in Mexico; Monarch Butterfly Fund helps sponsor North American Monarch Summit

Monarch sanctuaries in the Monarch Butterfly Biosphere Reserve have opened to the public, giving us a glimpse at the start of the overwintering colonies.

December 02, 2025

Greetings from the Monarch Butterfly Fund. 

 

As monarchs are reaching their overwintering homes in Mexico, we bring you the latest news from the region, from Estela Romero’s first update on the monarch colonies’ formation to Alternare’s reforestation and sustainable development projects and international recognition. We also share updates on tri-national conservation planning meetings that took place this past summer and progress reports on several ongoing forest health and monitoring projects. And our Lincoln Brower Award recipients report on their exciting work this summer. It’s been a busy year!
 
From all of us at the Monarch Butterfly Fund, we thank you for your support – it is what enables all of this important conservation work. We couldn’t do this without you.

 

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