Monarchs to Begin Migrating from Mexico this Month - Signs of the Seasons: A New England Phenology Program - University of Maine Cooperative Extension

One of our important indicator species, the Monarch butterfly, is set to begin their migration to North America from their overwintering roosts in Mexico. Using environmental cues, most will depart Mexico by mid-to late March. Monarchs are unique as they are the only butterfly known to undertake a two-way migration like birds do. Eastern monarchs read more