The Western Monarch Mystery Challenge

The Western Monarch Mystery Challenge is a campaign running from February 14th to April 22nd, to collect more records of where western monarchs spend the spring in California, after leaving the overwintering sites.

Western monarchs are at less than 1% of their population size in the 1980’s and the situation is alarming. The Western Monarch Mystery Challenge is a campaign to find out where western monarch butterflies are in early spring. We know they spend the winter months (November to February) in groves along the California Coast, and start breeding in central California as early as February. However, we know a lot less about where they are and what they’re up to in February, March, and April. Solving the mystery of where western monarchs spend the spring is central to conserving and restoring the phenomenon of monarch migration in the West.

How to participate is simple:

-If you see a monarch outside of overwintering groves, take a picture! (don’t worry, ...more ↓

Posted on January 23, 2020 20:00 by smcknight smcknight | 0 comments | Leave a comment
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This project is designed to help scientists gather information on monarch and milkweed locations throughout the west. This information will be provided to the Western Monarch Milkweed Mapper ( and help guide future monarch conservation efforts. Please join our project and help us learn more about ...more ↓

Mini smcknight created this project on August 29, 2016

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