Hylocitrea
Hylocitrea bonensis (A. B. Meyer & Wiglesworth, 1894)
The hylocitrea (Hylocitrea bonensis) is a species in the family Hylocitreidae, order Passeriformes. Recorded adults weigh about 27.5 g. Its IUCN Red List status is Least Concern.

Quick facts about the hylocitrea
- Weight
- 27.5 gsrc for Weight
- Length
- Not recorded
- Lifespan
- Not recorded
- Diet
- Frugivoresrc for Diet
- Main food
- Not recorded
- Habitat
- forestsrc for Habitat
- Young per litter or clutch
- Not recorded
- Lifestyle
- Perchingsrc for Lifestyle
- Migration
- Sedentarysrc for Migration
- Conservation status
- Least Concern (IUCN)src for Conservation status
- Countries on record
- Not recorded
Where does the hylocitrea live?
Not recorded
What is the hylocitrea?
The hylocitrea (Hylocitrea bonensis), also known as the yellow-flanked whistler or olive-flanked whistler, is a species of bird endemic to montane forests on the Indonesian island of Sulawesi. It is monotypic within the genus Hylocitrea. It was traditionally considered a member of the family Pachycephalidae, but recent genetic evidence suggests it should be placed in a monotypic family of its own, Hylocitreidae, related to the waxwings in the family Bombycillidae, the hypocolius in the family Hypocoliidae, the palmchat in the family Dulidae, the silky-flycatchers in the family Ptiliogonatidae, and the now-extinct Hawaiian family Mohoidae (Hawaiian honeyeaters). Some earlier authors took a broader view of this group, treating them as subfamilies in a wider family Bombycillidae, but they are now considered sufficiently diverse and ancient to be classified as a superfamily Bombycilloidea comprising these several families. Within the group, Hylocitrea was found to be a sister group to a clade containing the hypocolius (Hypocoliidae) and the extinct Mohoidae, with the clade containing all three being a sister group to the silky-flycatchers (Ptiliogonatidae). The divergences forming these families occurred in the early Miocene, about 20-23 million years ago.
From the Wikipedia article “Hylocitrea” (en.wikipedia.org/w/index.php?title=Hylocitrea&oldid=1384864564), by Wikipedia contributors, licensed under CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0). This block is kept separate from our own text.
Is the hylocitrea endangered?
The hylocitrea is listed as Least Concern on the IUCN Red List: it is not currently at risk of extinction.
- LCLeast Concern
- NTNear Threatened
- VUVulnerable
- ENEndangered
- CRCritically Endangered
- EWExtinct in the Wild
- EXExtinct
Category via Wikidata (CC0). Find the full assessment on the IUCN Red List. See all Least Concern species.
How is the hylocitrea classified?
- kingdomAnimalia
- phylumChordata
- classAves
- orderPasseriformes
- familyHylocitreidae
- genusHylocitrea
- SpeciesHylocitrea bonensis (A. B. Meyer & Wiglesworth, 1894)
Synonyms Pachycephala bonensis
Other names and names in other languages (41)
- Northern HylocitreaEnglish
- Olive-flanked whistlerEnglish
- Yellow-flanked whistlerEnglish
- ويسلر أصفر الخاصرةArabic
- xiuladora de flancs grocsCatalan
- pištec žlutobokýCzech
- chwibanwr ystlysfelynWelsh
- SulawesifløjterDanish
- CelebeswaldpfeiferGerman
- Olivflanken-DickkopfGerman
- OlivflankendickkopfGerman
- SulawesiwaldpfeiferGerman
- celebesa hilocitreoEsperanto
- Silbador de los BoneSpanish
- Silbador FlanquiamarilloSpanish
- hedelmäviheltäjäFinnish
- Siffleur à flancs jaunesFrench
- Hylocitrin à flancs jaunesFrench
- sulaveška zviždavkaCroatian
- Kancilan buahIndonesian
- IlocitreaItalian
- Capogrosso golafulvaItalian
- Zufolatore dai fianchi gialliItalian
- Zufolatore fianchiolivaItalian
- ミドリモズヒタキJapanese
- geltonšonis švilpikasLithuanian
- BessendikkopDutch
- sulawesiplystrerNorwegian
- jagodówkaPolish
- jagodówka (szaropierśna)Polish
- sibilante-de-bonePortuguese
- assobiadeira-da-celebesPortuguese
- ХилоцитреяRussian
- Целебесская толстоголовкаRussian
- celebeska horskáSlovak
- HilocitrejaSerbian
- Sulawesi Orman IslıkçısıTurkish
- флетовкаUkrainian
- товстодзьобка целебеськаUkrainian
- 林啸鹟Chinese
- 橙脇嘯鶇〔山林嘯鶇〕Chinese
Relatives of the hylocitrea
Other species in the same order Passeriformes.

House sparrow
Passer domesticus

Common raven
Corvus corax

Eurasian magpie
Pica pica

Common blackbird
Turdus merula

European robin
Erithacus rubecula

Eurasian golden oriole
Oriolus oriolus
CompareHylocitrea vs House sparrowHylocitrea vs Common ravenHylocitrea vs Eurasian magpieHylocitrea vs Common blackbird
Common questions
Answered only where our data holds the answer.
How big is the hylocitrea?
An adult hylocitrea weighs 27.5 g, according to values recorded on Wikidata.
Is the hylocitrea endangered?
The hylocitrea is listed as Least Concern on the IUCN Red List, meaning it is not currently at risk of extinction.
What kind of animal is the hylocitrea?
The hylocitrea (Hylocitrea bonensis) belongs to the family Hylocitreidae in the order Passeriformes.
Sources and how to cite this page
Data as of 2026-11-11. How this page is put together.
- AVONET: morphological, ecological and geographical data for all birds · CC BY 4.0 · v7
Tobias, J.A. et al. (2022) AVONET: morphological, ecological and geographical data for all birds. Ecology Letters 25: 581–597. https://doi.org/10.1111/ele.13898. Data: https://doi.org/10.6084/m9.figshare.16586228.v7 - Catalogue of Life eXtended Release · CC BY 4.0 · 2026-10-16 XR
Catalogue of Life (2026). Catalogue of Life eXtended Release, version 2026-10-16 XR. Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgzlf - Wikimedia Commons · per file (CC0 / public domain / CC BY green, CC BY-SA amber, anything else not displayed) · 2026-11-11
Wikimedia Commons contributors. Wikimedia Commons. https://commons.wikimedia.org (each file credited to its author under its own licence). - Wikidata · CC0 1.0 · 2026-11-11
Wikidata contributors. Wikidata. https://www.wikidata.org (data retrieved via the Wikidata Query Service). - Wikipedia (English) · CC BY-SA 4.0 · 2026-11-11
Wikipedia contributors. Wikipedia, The Free Encyclopedia. https://en.wikipedia.org (text under CC BY-SA 4.0; each block names its article and revision).
Embed a card for this animal on your own site
Copy this code. The card shows the photo with its credit, key facts and a link back to this page.
CreatureData. (2026). Hylocitrea (Hylocitrea bonensis). Retrieved from https://creaturedata.com/animals/hylocitrea
“Hylocitrea (Hylocitrea bonensis).” CreatureData, 2026, https://creaturedata.com/animals/hylocitrea.
@misc{hylocitrea_2026,
title = {Hylocitrea (Hylocitrea bonensis)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/hylocitrea},
note = {Data as of 2026-11-11}
}