The Xerces Society for Invertebrate Conservation says, along the California coast, 4.5 million monarchs overwintered in the ...

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 ...

With the annual Western Monarch Butterfly Count underway across California, a new analysis underscores the pivotal role that California state parks play in supporting the dwindling population of ...