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
May be confused with female Maroon-backed Whistler.
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.
- 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.
- 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
- BirdForum Opus contributors. (2023) Hylocitrea. In: BirdForum, the forum for wild birds and birding. Retrieved 4 December 2023 from https://www.birdforum.net/opus/Hylocitrea
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