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Hylocitrea - BirdForum Opus

(Redirected from Olive-flanked Whistler)

Alternative names: Yellow-flanked Whistler; Celebes Whistler; Sulawesi Whistler; Celebes Mountain Whistler; Buff-throated Thickhead; Buff-throated Whistler; Olive-flanked Whistler

Hylocitrea bonensis


14 - 15cm.

  • Greenish-olive head
  • Dark olive-brown crown
  • Brighter ear-coverts, duskier lores
  • Brownish slate-grey upperparts, wing washed olive
  • Brownish slate-grey tail and upperwing
  • Underparts also brownish slate-grey, a bit lighter than back
  • Brownish-cinnamon undertail-coverts
  • Bonthaina has more yellow flanks

Female like male but with cinnamon-buff throat with grey streaking and yellowish-olive crown

Similar species

May be confused with female Maroon-backed Whistler.


Sulawesi endemic. South East Asia: Indonesia: Greater Sundas. Moderately common at higher elevations. Restricted-range species.


Two subspecies accepted, may be treated as separate species:

  • H. b. bonensis in the mountains of north, central and southeast Sulawesi
  • H. b. bonthaina on Mount Lompobattang in southwest Sulawesi

Sometimes placed in genus Pachycephala. Recent molecular evidence suggests this taxon is highly distinctive and may be best placed in its own (sub-) family.


Moist montanes, mainly at 2000 - 3500m.


Has been seen feeding on berries and some arthropods, but little known. Forages in middle storey and understorey.
No information about breeding.
Probably a sedentary species.


  1. Clements, JF. 2008. The Clements Checklist of Birds of the World. 6th ed., with updates to December 2008. Ithaca: Cornell Univ. Press. ISBN 978-0801445019.
  2. Del Hoyo, J, A Elliott, and D Christie, eds. 2007. Handbook of the Birds of the World. Volume 12: Picathartes to Tits and Chickadees. Barcelona: Lynx Edicions. ISBN 978-8496553422

Recommended Citation

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