Greenbelt's Osprey research goals including better understanding the habitats and areas Osprey use during their spring and fall migration, and protecting summer breeding areas such as the
Great Marsh in Essex County.
Greenbelt partnered with researcher Dr. Bob Bierregaard (http://www.ospreytrax.com/) to study migration using small
solar-powered transmitters placed on the backs of juvenile Ospreys. We had tracked “Flow,” a male who hatched at the Cox Reservation nest in 2014, on his migration to his winter
home in Cuba and back to Essex County in the spring. Sadly, Flow disappeared on his southward migration in the fall of 2017.