The number of monarch butterflies at Pacific Grove's monarch sanctuary hit a new low last year: zero. But overwintering sites in California have erupted with monarchs this year. KAZU's Erika Mahoney on the stunning comeback.
The Pacific Grove Museum of Natural History is carrying out a yearly count of monarch butterfly. They are noticing thousands more compared to 2020. The museum recorded 9,544 butterflies on Thursday, October 29th but there were none in the sanctuary in 2020.