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Content originally written in English & translated by Google. Accuracy may be limited due to automated translation.

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Western Monarch Count

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early season monitoring period

Western Monarchs Are Returning to California: Early-Season Count Documents Several Thousand So Far

Monarchs gather at Lighthouse Field overwintering site in mid-October, 2025. Photo by Diana Magor.

Monarch butterflies are fluttering back to California’s coast, and volunteers across the West have been busy surveying overwintering sites for the 2025 Western Monarch Count (WMC)! Early reports estimate approximately…

Western Monarchs Are Returning to California: Early-Season Count Documents Several Thousand So Far : Read More

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The Western Monarch Count website is administered by the Xerces Society for Invertebrate Conservation on behalf of the Western Monarch Count. The Xerces Society is a donor-supported nonprofit organization that protects our world through the conservation of invertebrates and their habitats.