Pale-blue Monarch (Hypothymis puella) [XC194393]
by Mike Nelson from Palolo, Sulawesi Tengah, Indonesia (song)
Pale-blue Monarch (Hypothymis puella) [XC90079]
by Frank Lambert from Palau Batudaka, Togian Islands, nr Taningkola, Indonesia (call, song, song and calls of male)
Subspecies
Considered by some authors to be a subspecies of Black-naped Monarch (Hypothymis azurea).
The following 2 subspecies are recognised:
puella (Wallace, 1863) - Sulawesi and nearby islands. Considered by some authors to be a subspecies of Black-naped Monarch (Hypothymis azurea).
blasii Hartert, 1898 - Banggai Is and Sula Is. Considered by some authors to be a subspecies of Black-naped Monarch (Hypothymis azurea).