The Journeys of Nantucket’s Ospreys


  • Osprey Tagging
    A lightweight GPS transmitter is strapped on to Senor Bones.
  • Osprey GPS Tracker
    The transmitter is solar powered.
  • Osprey Tagging Group
    It takes a team to band an osprey!
  • Osprey Flying
    Senor Bones gets ready to fly.
  • View from Osprey Nest
    A view from Senor Bones' nest in the Galls on Nantucket.
  • Osprey in Flight
    In the September, Senor Bones heads south for the winter.
  • Osprey Migration Map
    In 2013, he took the most direct route yet.
  • Santander_Diego Fernando
    A photo near his perch area in Santander, Colombia
Dr. Bob Kennedy with a hawk

Dr. Bob Kennedy with a red-tail hawk

At the end of each summer, the Ospreys that nest and raise their young on Nantucket embark on a long journey back to Central and South America. In collaboration with The Trustees of Reservation, Maria Mitchell’s Senior Research Fellow Dr. Bob Kennedy has attached GPS transmitters to two Nantucket Osprey. The first, Mr Hannah, was tracked for a full year before disappearing during his second tracked journey to South America. The second, Senor Bones, is currently in South America for his second winter wearing the GPS backpack. As winter gives way to spring, the Osprey return to Nantucket. The first sighting of an Osprey usually occurs around the end of March though the exact day varies year to year.

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GPS transmitter on Senor Bones

Senor Bones wears a small GPS transmitter.



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