03/17/2026
🦋 Good news for the Eastern Monarch butterfly population! The official count is in and their numbers increased by 64% when compared to last year. While these results are encouraging, we remain guardedly optimistic and know that habitat restoration efforts must continue. Thank you Monarch Watch for this encouraging report! 🦋
Monarch overwintering numbers have been released today for the eastern monarch, and this season's numbers are higher than last year's.
The WWF-Telmex Telcel Foundation Alliance, in collaboration with the National Commission of Natural Protected Areas (CONANP), the National Autonomous University of Mexico (UNAM), and the Monarch Butterfly Biosphere Reserve (MBBR), announced the total forest area occupied by overwintering monarch colonies today. Nine colonies were located this winter season with a total area of 2.93 hectares, a 64% increase from the previous season (1.79 hectares).
You can view details on our blog post, "Monarch Population Status," at monarchwatch.org/blog (or find the link in the comments). We'll post more details there as they become available.