Monarch Butterfly Migration California 2024. As millions of monarch butterflies make their way down the east coast to mexico for the winter, butterfly scientists want people in their flight path to report. Instead, they spend the winter in roosting spots.
Stephanie turcotte reports that from february 16th to february 23rd, 2024, observations in pacific grove, ca, revealed notable shifts in monarch butterfly behavior. The monarch butterflies that come each year to california are, in a word, spellbinding.