Monarch butterflies are clustering along coastal California. Here's where to find them

A kaleidoscope of monarchs gathered at Lincoln Park in Alameda. Photo credit: Eliya Selhub, 2022

They are back! The ever so mysterious invertebrates that cluster in masses, revealing a brilliant burst of orange and black. 

The annual monarch butterfly migration is one of the most breathtaking spectacles in the insect world. Western monarchs from the Rocky Mountains start showing up along the coast of California mid-October, and this year, enthusiasts say they are out in droves.

After shockingly low numbers in 2020, the endangered monarchs made a comeback that continued into 2022. But experts say the rally may be cut short because of the past winter's destructive storm systems.

Chart via

While some have gathered along Bay Area coastal areas, the largest number of clustering monarchs will be found by heading south to Santa Cruz. 

An interactive map allows you to search areas of California to see where they are clustering. Here's where to find them:

Map of Western Monarch counts along the California Coast. Credit: Xerces Society for Invertebrate Conservation

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