When Do Monarchs Migrate North?
They Remain in Their Roosts During the Winter Months and Then Begin Their Northern Migration in March. No Individual Butterfly Completes the Entire Round Trip...
They remain in their roosts during the winter months and then begin their northern migration in March. No individual butterfly completes the entire round trip. Female monarchs lay eggs for a subsequent generation during the northward migration. Four generations are involved in the annual cycle.
What time of year do monarchs migrate?
Most of the monarchs will remain in this condition until the following spring, when they begin to mate in the overwintering colonies. During September, October, and early November, migratory adults fly to overwintering sites in central Mexico, where they remain from November to March.
Do monarchs migrate north?
Monarchs in Eastern North America have a second home in the Sierra Madre Mountains of Mexico. Monarchs in Western North America overwinter in California.
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