Hylocitrea

The hylocitrea (Hylocitrea bonensis), also known as the yellow-flanked whistler or olive-flanked whistler, is a species of bird that is endemic to montane forests on the Indonesian island of Sulawesi.^[3] It is monotypic within the genus Hylocitrea, and has traditionally been considered a member of the family Pachycephalidae, but recent genetic evidence suggests it should be placed in a monotypic subfamily of the family Bombycillidae,^[4] or even its own family, Hylocitreidae.^[1] A 2019 study^[5] found it to be a sister group to a clade containing the hypocolius (Hypocoliidae) and the extinct Hawaiian honeyeaters (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.^[5][6]

Hylocitrea[1]
Conservation status
Least Concern  (IUCN 3.1)[2]
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Passeriformes
Superfamily:	Bombycilloidea
Family:	Hylocitreidae Fjeldsa, Ericson, Johannson, & Zuccon 2015
Genus:	Hylocitrea Mathews, 1925
Species:	H. bonensis
Binomial name
Hylocitrea bonensis (Meyer & Wiglesworth, 1894)