The number of monarch butterflies spending the winter in the western United States dropped dramatically this year even as ...

The Western population of the monarch butterfly has declined to a near-record low with fewer than 10,000 found living in ...

The U.S. Fish and Wildlife Service is taking steps to list monarch butterflies as threatened species and designate seven ...

Some research indicates that certain types of milkweed such as Asclepias Curassavica the tropical variety sold at home ...

The count estimated a winter population of 9,119 monarchs this year as climate change, habitat loss, pesticides and disease ...

In 2023, more than 16,000 butterflies were counted at one local grove. The most recent count was a tiny fraction of that.