Aberrant Bush Warbler

Order - Passeriformes
Family - Scotocercidae (Bush-warblers)

Aberrant Bush Warbler

Horornis flavolivaceus

马氏树莺 (mǎ-shì shù-yīng)

    Malay : Cekup-Semak Biasa

    Japanese : スンダウグイス (sunda uguisu)

    Kanji 日語漢字 : スンダ鴬

Taxonomy update for 2022

Sunda Bush Warbler and Aberrant Bush Warbler often are treated as separate species, although the circumscription differs among authors (particularly with regard to subspecies intricatus and oblitus). Results from phylogenetic analyses (Olsson et al. 2006, Alström et al. 2011) based on a small number of loci are conflicting, both between studies and between different analyses of the same data. Awaiting further analyses of genomic data and vocalisations, Sunda Bush Warbler is lumped into Aberrant Bush Warbler; nonetheless we continue to recognize a polytypic group Aberrant Bush Warbler (Sunda) Horornis flavolivaceus [vulcanius Group], with subspecies sepiarius, flaviventris, vulcanius, kolichisi, everetti, banksi, oreophilus, and palawanus. Note that this sequence is revised over the previous arrangement of subspecies of Sunda Bush Warbler: subspecies everetti now follows nominate vulcanius and subspecies kolichisi, rather than being the final subspecies; and subspecies oreophilus now follows, rather than precedes, subspecies banksi.

We recognize a previously overlooked subspecies, kolichisi Johnstone and Darnell 1997 (Johnstone and Darnell 1997), with range “Alor (Lesser Sundas)”. Insert kolichisi immediately following nominate vulcanius.

Subspecies alexandri, with range “Extreme ne India (Manipur) and adjacent Myanmar”, is considered to be a junior synonym of subspecies weberi (Kennerley and Pearson 2010), and is deleted. Revise the range description of weberi from “W Myanmar (Chin Hills)” to “extreme northeastern India (Nagaland, Manipur, and eastern Mizoram) and adjacent western Myanmar south to the Chin Hills”.

    Size : 12–13 cm

    

    Subspecies and Distribution

• Horornis flavolivaceus vulcanius (Blyth, 1870) – [vulcanius Group]
  – Java, Bali, Lombok and Sumbawa.
• Horornis flavolivaceus sepiarius (Kloss, 1931) – [vulcanius Group]
  – Mountains of n Sumatra.
• Horornis flavolivaceus flaviventris (Salvadori, 1879) – [vulcanius Group]
  – Mountains of central and s Sumatra.
• Horornis flavolivaceus oreophilus (Sharpe, 1888) – [vulcanius Group]
  – N Borneo (Mt. Kinabalu).
• Horornis flavolivaceus banksi (Chasen, 1935) – [vulcanius Group]
  – Mountains of n Borneo (Sabah and Sarawak).
• Horornis flavolivaceus palawanus (Ripley and Rabor, 1962) – [vulcanius Group]
  – Mountains of Palawan (sw Philippines).
• Horornis flavolivaceus kolichisi (Johnstone and Darnell, 1997) – [vulcanius Group]
  – Alor (Lesser Sundas).
• Horornis flavolivaceus everetti (Hartert, E, 1898) – [vulcanius Group]
  – Timor (e Lesser Sundas).
• Horornis flavolivaceus flavolivaceus (Blyth, 1845) – [flavolivaceus Group]
  – Himalayas of Garhwal to Nepal, Arunachal Pradesh and se Tibet.
• Horornis flavolivaceus stresemanni (Koelz, 1954) – [flavolivaceus Group]
  – NE India (Garo and Khasi hills of Assam).
• Horornis flavolivaceus weberi (Mayr, 1941) – [flavolivaceus Group]
  – extreme northeastern India (Nagaland, Manipur, and eastern Mizoram) and adjacent western Myanmar south to the Chin Hills.
• Horornis flavolivaceus intricatus (Hartert, E, 1909)
  – northern and eastern Myanmar and southwestern China (east to southern Shanxi).
• Horornis flavolivaceus oblitus (Mayr, 1941)
  – N Laos and n Vietnam.

Horornis flavolivaceus ssp. oreophilus
Date : 28 February 2018

Location : Kinabalu Park, Ranau, Bahagian Pantai Barat, Sabah

Horornis flavolivaceus ssp. oreophilus
Date : 28 February 2018

Location : Kinabalu Park, Ranau, Bahagian Pantai Barat, Sabah

Horornis flavolivaceus ssp. oreophilus
Date : 28 February 2018
Location : Kinabalu Park, Ranau, Bahagian Pantai Barat, Sabah