Since the installation of the
LifeWatch.be GPS tracking network for large birds in June 2013, more than 100 European Herring Gulls, Lesser Black-backed Gulls and Western Marsh Harriers have been tagged with a lightweight, solar powered GPS tag.
On Tuesday June 2nd, about 2 years after the start of the project,
Joana, a female European Herring Gull became the 100th tagged individual!
All tagged birds can be followed in real-time
here
Since June 2013 the GPS bird GPS data already revealed some
interesting behavior and migration patterns