A bird flies over water near the shoreline of Prespa Lake, North Macedonia, Aug. 15, 2020. According to MES (Macedonian Ecological Society), Prespa Lake is a place for migrating birds to rest on their way to warmer regions in Albania, Greece and Montenegro. (Photo by Tomislav Georgiev/Xinhua)

Fishermen are seen on a boat on Prespa Lake, North Macedonia, Aug. 15, 2020. According to MES (Macedonian Ecological Society), Prespa Lake is a place for migrating birds to rest on their way to warmer regions in Albania, Greece and Montenegro. (Photo by Tomislav Georgiev/Xinhua)

A boat is seen at shoreline of Prespa Lake, North Macedonia, Aug. 15, 2020. According to MES (Macedonian Ecological Society), Prespa Lake is a place for migrating birds to rest on their way to warmer regions in Albania, Greece and Montenegro. (Photo by Tomislav Georgiev/Xinhua)

Birds are seen near the shoreline of Prespa lake, North Macedonia, Aug. 15, 2020. According to MES (Macedonian Ecological Society), Prespa Lake is a place for migrating birds to rest on their way to warmer regions in Albania, Greece and Montenegro. (Photo by Tomislav Georgiev/Xinhua)

Birds fly over Prespa lake, Northern Macedonia, August 15, 2020. According to MES (Macedonian Ecological Society), Prespa Lake is a place for migrating birds to rest on their way to warmer regions in Albania, Greece and Montenegro. (Photo by Tomislav Georgiev/Xinhua)

Birds perch in water near the shoreline of Prespa lake, North Macedonia, Aug. 15, 2020. According to MES (Macedonian Ecological Society), Prespa Lake is a place for migrating birds to rest on their way to warmer regions in Albania, Greece and Montenegro. (Photo by Tomislav Georgiev/Xinhua)