Volunteers plant hundreds of milkweed plants in hopes of supporting the dwindling Western monarch population in California.

SAN FRANCISCO — The number of western monarch butterflies overwintering in California dropped by 30% last year, likely due to how wet it was, researchers said Tuesday. Volunteers who visited sites in ...

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 ...

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 ...

After two straight years of increases, the number of monarch butterflies along the California coast dropped this winter. Monarchs show up each year along the coast to wait out the cold months. But ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. The annual Western Monarch Count observed a ...

SAN FRANCISCO — The number of western monarch butterflies overwintering in California dropped by 30 percent last year, likely due to how wet it was, researchers said Tuesday. Volunteers who visited ...

SAN FRANCISCO — The number of western monarch butterflies overwintering in California dropped by 30% last year, likely due to how wet it was, researchers said Tuesday. Volunteers who visited sites in ...

The Western population of the monarch butterfly has declined to a near-record low with fewer than 10,000 found living in California this winter, a foreboding sign for the future of the beloved ...

The number of western monarch butterflies overwintering in California dropped by 30% last year, likely due to how wet it was, researchers said Tuesday. Volunteers who visited sites in California and ...