On 4 May, the plane took off. It flew over Monnickendam. Then, over the Oostvaardersplassen nature reserve.
Then, it crossed the Ijssel river. At 7:25 it was near Paderborn in Germany. It flew over Prague in the Czech republic at about 8:30. Later, over Thessaloniki in Greece.
This is a video about house martins, made in Estonia.
At 9:55, the aircraft took off again. It was supposed to continue to Lesbos island. However, these days there is a big strike movement in Greece against anti-worker cuts. This meant that Lesbos airport was not open for traffic.
So, our aircraft continued, not to Lesbos, but to Izmir in Turkey. We arrived there at 10:15 West European time, 11:15 Turkish time.