Some of the largest clusters this season were found in Santa Cruz County, with 1,406 monarchs at Lighthouse Field State Beach ...

For the past three years, more than 200,000 western monarch butterflies spent their winters along the California coast — huddling together in tall tree groves, finding respite from the wind from ...

Before National Geographic published its famous August 1976 cover story detailing the search for the monarch butterfly’s wintering grounds, nobody knew where these strikingly beautiful creatures ...

The number of monarch butterflies migrating to California over the winter has hit a near-record low, according to the agency that conducts the annual count. The 28th annual Western Monarch Count ...