Pachycephala

Pachycephala
Adult male rufous whistler
(Pachycephala rufiventris)
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Pachycephalidae
Subfamily: Pachycephalinae
Genus: Pachycephala
Vigors, 1825
Type species
Muscicapa pectoralis
Latham, 1801
Synonyms
  • Alisterornis
  • Hyloterpe
  • Lewinornis
  • Muscitrea

Pachycephala is a genus of birds native to Oceania and Southeast Asia. They are commonly known as typical whistlers. Older guidebooks may refer to them as thickheads, a literal translation of the genus name, which is derived from Ancient Greek παχύς (pakhús), meaning "thick", and κεφαλή (kephalḗ), meaning "head". This lineage originated in Australo-Papua and later colonized the Indonesian and Philippine archipelagos to the west and the Pacific archipelagos to the east.[1]

Taxonomy

The genus Pachycephala was introduced in 1825 by the Irish zoologist Nicholas Vigors with the Australian golden whistler as the type species.[2][3] The name is derived from Ancient Greek παχύς (pakhús), meaning "thick", and κεφαλή (kephalḗ), meaning "head".[4]

There have been big changes to the species limits in the genus Pachycephala. In 2007 Walter Boles in the Handbook of the Birds of the World recognised 21 species in the genus but in 2025 AviList recognised 51 species.[5][6]

The genus contains 51 species:[6]

Former species

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

An unidentified Pachycephala whistler was heard on May 14, 1994 at 1,000 meters ASL south of the summit of Camiguin in the Philippines, where the genus was not previously known to occur. It might have been an undescribed taxon, or simply a vagrant of a known species.[9]

References

  1. ^ Jønsson, K.A. et al. (2014) Evidence of taxon cycles in an Indo-Pacific passerine bird radiation (Aves: Pachycephala). Proc. R. Soc. B.
  2. ^ Vigors, Nicholas Aylward (1825). "Observations on the natural affinities that connect the orders and families of birds". Transactions of the Linnean Society of London. 14 (3): 395–517 [444]. doi:10.1111/j.1095-8339.1823.tb00098.x.
  3. ^ Paynter, Raymond A. Jr, ed. (1986). Check-List of Birds of the World. Vol. 12. Cambridge, Massachusetts: Museum of Comparative Zoology. p. 8.
  4. ^ Jobling, James A. (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. p. 288. ISBN 978-1-4081-2501-4.
  5. ^ Boles, W.E. (2007). "Family Pachycephalidae (Whistlers)". In del Hoyo, J.; Elliott, A.; Sargatal, J . (eds.). Handbook of the Birds of the World. Vol. 12: Picathartes to Tits and Chickadees. Barcelona, Spain: Lynx Edicions. pp. 374–437 [421-423]. ISBN 978-84-96553-42-2.
  6. ^ a b AviList Core Team (2025). "AviList: The Global Avian Checklist, v2025". doi:10.2173/avilist.v2025. Retrieved 11 December 2025.
  7. ^ "Coracornis raveni - Avibase". avibase.bsc-eoc.org. Retrieved 2017-01-29.
  8. ^ "Colluricincla megarhyncha fortis - Avibase". avibase.bsc-eoc.org. Retrieved 2017-02-17.
  9. ^ Balete, Danilo S.; Tabaranza, Blas R. Jr. & Heaney, Lawrence R. (2006) An Annotated Checklist of the Birds of Camiguin Island, Philippines. Fieldiana Zool. New Series 106: 58–72.