The Western population of the monarch butterfly hit a near-record low with fewer than 10,000 found living in California this ...

In December, the U.S. Fish and Wildlife Service proposed to list the monarch butterfly as a threatened species under the U.S. Endangered Species Act. The public can comment on the listing until ...

The butterfly’s Western population has plummeted more than 95% since the 1980s, when up to 4 million butterflies were estimated to spend winter in California, according to the California ...

The USFWS proposed in December 2024 that the monarch butterfly be listed as a threatened species under the US Endangered Species Act, with a 90-day comment period ending on March 12, 2025.

For the past three years, more than 200,000 western monarch butterflies spent their ... since the count first began in 1997. While the butterfly’s population has been declining for years ...

The number of monarch butterflies spending the winter in the western United States has dropped to its second-lowest mark in nearly three decades as pesticides, diminishing habitat and climate ...

PISMO BEACH, Calif. - Historically low numbers of western monarch butterflies visited the Central Coast this winter. This data comes as the butterfly is under consideration for protection under ...

MADISON, Wis. (AP) — The number of monarch butterflies spending the winter in the western United States has dropped to its second-lowest mark in nearly three decades as pesticides, diminishing ...

(Photo courtesy of California State Parks Foundation) The Western population of the monarch butterfly has reached the second-lowest level recorded since tracking began nearly three decades ago ...