Semicollared flycatcher

The semi-collared flycatcher (Ficedula semitorquata) is a small passerine bird in the Old World flycatcher family, one of the four species of Western Palearctic black-and-white flycatchers. It breeds in the southeastern corner of Europe, the Middle East and southwestern Asia. It is migratory, wintering in Africa. It is a rare vagrant in western Europe. Wikipedia.