In a few weeks, it will be the start of the monarch butterfly’s migration.1 Millions of monarch butterflies make a 3,000-mile journey to Mexico – this migration takes several generations, as adult monarchs only live a few weeks. Monarchs need places to rest and eat and lay their eggs along this journey – and that’s where they’re having trouble. Habitat loss and fragmentation, climate change, and the destruction of milkweed in many areas has caused a 90% decline in monarch butterfly populations over the past few decades