Pacific Grove is known as ‘Butterfly Town USA’ for its role as an overwintering spot. As the insect’s population plummets, residents are coming to its rescue ...

Monarch butterflies return to California for the winter in November in Santa Cruz, California. The U.S. Fish and Wildlife Service is taking steps to list monarch butterflies as a threatened species ...

U.S. wildlife officials announced a decision Tuesday to extend federal protections to monarch butterflies after years of warnings from environmentalists that populations are shrinking and the beloved ...

MADISON, Wis. (AP) — U.S. wildlife officials announced a decision Tuesday to extend federal protections to monarch butterflies after years of warnings from environmentalists that populations are ...

A monarch butterfly at the Coastal Access Monarch Butterfly Preserve in Los Osos, Calif., on Jan. 20. (Gary Coronado / Los Angeles Times) The Western population of the monarch butterfly has declined ...

While a devastatingly low number of monarch butterflies migrate to San Luis Obispo County this winter, the federal government has proposed listing the insect as threatened under the Endangered Species ...

Citizen scientists and volunteers have counted over 233,300 monarch butterflies across the western United States as part of Xerces Society’s 27th annual count. Despite ongoing efforts to save the ...

SACRAMENTO, Calif.— The California Fish and Game Commission voted unanimously today to declare the Quino checkerspot butterfly a candidate species under the California Endangered Species Act, granting ...

OAKLAND, Calif.— The Center for Biological Diversity and Endangered Habitats League petitioned the California Fish and Game Commission today to list the Quino checkerspot butterfly as endangered under ...

Counters reported finding only two monarch butterflies at Ellwood East during the latest overwintering butterfly count in Goleta on Monday.  There were no ...

California’s iconic monarch butterfly population saw a sharp decline this year, which biologists attribute to the hot summer and fall temperatures across the state affecting the species’ migratory ...

State officials granted temporary protections to the Quino checkerspot, setting up a review — and a new flashpoint in the housing-versus-conservation fight. SACRAMENTO, California — California ...