#conservation-threats

#conservation-threats

Many (but not all) monarchs migrate seasonally, seeking refuge from too-cold temperatures. In Western North America, monarchs fly south from Canada and the Pacific Northwest to overwinter in temperate spots along the California coast. Some come from colder regions west of the Rocky Mountains, too. The overwintering season in California is roughly October to February. During this time, monarchs cluster together in packed colonies for warmth-in a good year, thousands of monarchs might rest on a single tree, creating a kaleidoscope of brilliantly colored wings.