Home Local Monarch butterfly population down so it’s not too early to plan your urban monarch garden, local researchers say

Monarch butterfly population down so it’s not too early to plan your urban monarch garden, local researchers say

by staff

The monarchs we see in Chicago are part of the eastern population, which accounts for nearly all the monarchs in North America, and includes a supergeneration that flies thousands of miles to Mexico. The western population, which winters in California, was found to number fewer than 2,000 monarchs in a Thanksgiving count — a record low, down from nearly 30,000 the prior year and more than a million years ago.

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