Pilot tracks 4800 KM Monarch Butterfly migration

Vico Gutierrez a pilot flying his ultralight for 72 days has ended his 4,800-km odyssey of following the migration of Monarch butterfly. His journey from Canada ended near the Angangueo Sanctuary set aside for Monarchs in Mexico. Not one butterfly makes the round-trip journey. The offspring of those who start it head instinctively for a place they have never been. It takes three or four generations of monarch butterflies to reach their summer grounds in Canada and northern areas of the United States.