Voice
Song is a thin tinkling, high-pitched phrase of five notes 'wee-ti-wee-ti-wi', the second note higher, forth lowest. This phrase is interspersed with a three note phrase 'wee-tee-wi', the emphasis on the second note.
Bornean Blue Flycatcher (Cyornis superbus) [XC530048]
by Okamoto Keita Sin from nr. Lesan Protection Forest, Kabupaten Berau, Kalimantan Timur, Indonesia (song)
Bornean Blue Flycatcher (Cyornis superbus) [XC578715]
by id from Danum Valley Field Centre, Sabah, Malaysia (song)