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The North American monarchs begin their southern migration in September and October. Migratory monarchs originate in southern Canada and the northern United States, they travel thousands of kilometers to overwintering sites in central Mexico. The butterflies arrive at their roosting sites in November.
The monarch is the only butterfly known to make a two-way migration as birds do. Unlike other butterflies that can overwinter as larvae, pupae, or even as adults in some species, monarchs cannot survive the cold winters of northern climates.
The monarch's migration is driven by seasonal changes. Daylength and temperature changes influence the movement of the monarch. In all the world, no butterflies migrate like the monarchs of North America. They travel much farther than all other tropical butterflies, up to three thousand miles.
In North America the migratory monarch butterfly (D. plexippus plexippus) is a well-known example of a wide-range migrant with an extensive breeding range. Thousands of these monarchs gather in autumn and migrate southward, sometimes traveling about 3,000 km (1,800 miles) to overwinter on the California coast or in the mountains of the oyamel ...
Each fall, millions of monarch butterflies leave their summer breeding grounds in the northeastern U.S. and Canada and travel upwards of 3,000 miles to reach overwintering grounds in...
Did you know eastern monarch butterflies will fly between 2,000 to 3,000 miles to an overwintering location in South-Central Mexico? From New England to California, thanks for helping protect the pollinators that help keep our natural world healthy.
Every year, the Eastern monarch butterfly flies up to 2,500 miles from its breeding grounds in the US and Canada, all the way down to its hibernation grounds in central Mexico. These tiny creatures have the most highly evolved migratory pattern of any known species of their kind, but this unique phenomenon is under threat.
Mid-August typically marks the start of fall migration for millions of monarch butterflies. Adult monarchs are partway through their lifecycle, but their reproduction is on hold. These monarchs are different from their parents, grandparents and even great grandparents.
The Monarch butterflies' arduous annual migration, which will end months later in Mexico, begins at the geographical latitude of the Great Lakes. It is late August. To the west of Chicago, in the prairies of Iowa, Monarch butterfly caterpillars are eating their fill of the leaves of the milkweed.
In the fall, monarch butterflies in eastern North America travel up to 3,000 miles to reach Mexico. Some people count on the arrival each migration season of monarchs to mark time, and monarchs are an important part of certain cultures.