Movements on the Breeding Grounds and During Migration of Female Eurasian Hobbies Falco Subbuteo Tracked with GPS Loggers

In one of the very few investigations of the movements of the Eurasian Hobby, we caught and GPS-tagged two females in north-eastern Poland. Tracked individuals had strikingly different breeding home ranges of 1.5 km2 and 83.2 km(2) and moved, on average, a respective 23 and 61 km per day. On 1 September 2021, both birds began migrating and flew directly south, covering up to 999 km per day, and averaging 276 km for the first female and 327 km for the second. After the birds moved approximately 10,000 km, their signals were lost in central and southern Africa, respectively.