Gobemouche noir / European pied flycatcherIn southern Europe, the European pied flycatcher is only seen in September when tens of thousands of birds make a stopover in parks and gardens during their migration towards the south of the Sahara, in Africa where they spend the winter. This one spent part of the afternoon hunting insects in the tree of my small garden.
https://en.wikipedia.org/wiki/European_pied_flycatcher