Iole (genus)

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Buff-vented Bulbul (Iole olivacea).jpg
Buff-vented bulbul
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Pycnonotidae
Genus: Iole
Blyth, 1844

Iole is a genus of songbirds in the bulbul family, Pycnonotidae. They are native to tropical eastern Asia, from India to China and south through Southeast Asia to northern Indonesia.

Taxonomy and systematics[edit]

While some older sources merge this genus into Hypsipetes, this is neither advisable nor technically correct. The two genera stand well apart, and to phylogenetically justify their merging, the entire "Hypsipetes group" of bulbuls would need to be united in a single genus. That would include Hemixos, Ixos, Microscelis and Tricholestes, and probably also Alophoixus and the monotypic Setornis. The hook-billed bulbul may in fact be the closest living relative to the species in Iole, but altogether the present genus may well be a quite basal lineage of the traditional "Hypsipetes group" of bulbuls, with no particularly close relatives among any of these other genera.[1]

According to mtDNA NADH dehydrogenase subunits 2 and 3 and nDNA β-fibrinogen intron 7 sequence data Alophoixus is only slightly more distant from Hypsipetes than Iole is, whereas mtDNA 12S rRNA and 16S rRNA sequence data places it actually closer to Hypsipetes than to Iole. As the genus name Ixos pre-dates Hypsipetes, it would thus apply to such a thoroughly merged "wastebin taxon".[1]

Extant species[edit]

The following species are currently recognized:[2]

Former species[edit]

Formerly, some authorities also considered the following species (or subspecies) as species within the genus Iole:


  1. ^ a b Gregory (2000), Pasquet et al. (2001), Moyle & Marks (2006)
  2. ^ "Bulbuls « IOC World Bird List". Retrieved 2017-06-02. 
  3. ^ "Acritillas indica - Avibase". Retrieved 2017-06-02. 
  4. ^ Harrison, John (2011-01-27). A Field Guide to the Birds of Sri Lanka. OUP Oxford. ISBN 9780199585663. 
  5. ^ "Hemixos cinereus (Cinereous Bulbul) - Avibase". Retrieved 2017-10-23. 
  6. ^ "Hypsipetes mindorensis (Mindoro Bulbul) - Avibase". Retrieved 2017-11-04. 
  7. ^ "Hypsipetes guimarasensis (Visayan Bulbul) - Avibase". Retrieved 2017-11-05. 
  8. ^ "Hypsipetes rufigularis (Zamboanga Bulbul) - Avibase". Retrieved 2017-11-05. 
  9. ^ "Hypsipetes siquijorensis (Streak-breasted Bulbul) - Avibase". Retrieved 2017-11-05. 
  10. ^ "Hypsipetes siquijorensis cinereiceps (Romblon Bulbul) - Avibase". Retrieved 2017-11-05. 
  11. ^ "Hypsipetes siquijorensis monticola (Cebu Bulbul) - Avibase". Retrieved 2017-11-05. 


  • Gregory, Steven M. (2000): Nomenclature of the Hypsipetes Bulbuls (Pycnonotidae). Forktail 16: 164-166. PDF fulltext
  • Moyle, Robert G. & Marks, Ben D. (2006): Phylogenetic relationships of the bulbuls (Aves: Pycnonotidae) based on mitochondrial and nuclear DNA sequence data. Mol. Phylogenet. Evol. 40(3): 687-695. doi:10.1016/j.ympev.2006.04.015 (HTML abstract)
  • Pasquet, Éric; Han, Lian-Xian; Khobkhet, Obhas & Cibois, Alice (2001): Towards a molecular systematics of the genus Criniger, and a preliminary phylogeny of the bulbuls (Aves, Passeriformes, Pycnonotidae). Zoosystema 23(4): 857-863. PDF fulltext