Family Old World Flycatchers and Chats (Muscicapidae)

Least Concern

Sulawesi Blue-flycatcher (Cyornis omissus)


French: Gobemouche des Célèbes German: Floressee-Blauschnäpper Spanish: Papamoscas de Célebes

Siphia omissa

E. J. O. Hartert

, 1896,

hills of Indrulaman, about 2500 feet [c. 760 m], just below Bonthain Peak


Until recently considered conspecific with C. rufigastra, but differs in its slightly more sharply defined blue eyebrow in male (1); pale soft-edged orange-rufous lores meeting on forehead (plus pale half-ring on lower eye) vs two sharply defined white marks on lores not meeting on forehead, in female (3); ear-coverts tinged brownish-grey with pale shafts vs deep blue, in female (1); use of hill forest vs mangroves and adjacent low wooded areas (1); song always with a high-pitched introductory note, and usually also a high-pitched final note (at least 1). Birds on Togian Is, apparently representing an undescribed taxon, reported to differ vocally; voice of race peromissus unknown#R. Two subspecies recognized.

What do (1) and (2) mean? Learn more about the scoring system.
Subspecies and Distribution
  • C. o. omissus#R (E. J. O. Hartert, 1896) – Sulawesi.
  • C. o. peromissus#R E. J. O. Hartert, 1920 – Selayar I (off SW Sulawesi).
  • Apparently an undescribed taxon on Togian Is (Batudaka, Togean), Gulf of Tomini#R#R.

    Descriptive notes

    14–15 cm; 14–21 g. Male nominate race has pale blue supercilium, blackish lores, chin and cheek to ear-coverts; rest of head and entire upperparts dark blue, inner webs of... read more


    Song (nominate race) a pleasant warble of 4–6 notes (usually on descending scale, occasionally even... read more


    Hill forest and lower montane forest from 500 m up to 1300 m, locally to 2300 m in Lore Lindu... read more

    Food and feeding

    Diet includes flies (Diptera), hymenopterans, termites (Isoptera), aphids (Aphidoidea) and other small invertebrates. Usually solitary or... read more


    No information.



    Status and conservation

    Not globally threatened (Least Concern). Nominate race common on Sulawesi; peromissus very poorly known. The species’ population, although not known with any degree... read more

    Recommended citation

    del Hoyo, J., Collar, N. & Christie, D.A. (2019). Sulawesi Blue-flycatcher (Cyornis omissus). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from on 18 September 2019).