Biology:Brush cuckoo

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Short description: Species of bird

Brush cuckoo
Brush Cuckoo Oct 2007.JPG
Scientific classification edit
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Cuculiformes
Family: Cuculidae
Genus: Cacomantis
Species:
C. variolosus
Binomial name
Cacomantis variolosus
(Vigors & Horsfield, 1827)

The brush cuckoo (Cacomantis variolosus) is a member of the cuckoo family.

The brush cuckoo is native to Malesia, New Guinea, the Solomon Islands and northern and eastern Australia . It is a grey-brown bird with a buff breast. Its call is a familiar sound of the Australian and Indonesian bush.

Taxonomy

Twelve subspecies have been recognised:[2][3]

  • Cacomantis variolosus addendus (Rothschild & Hartert, 1901)[4] – Solomon Islands.[3]
  • Cacomantis variolosus aeruginosus (Salvadori, 1878) – Central Maluku Islands (Sula Islands, Buru, Ambon, Seram).[3]
  • Cacomantis variolosus blandus (Rothschild & Hartert, 1914)[5] – Admiralty Islands.[3]
  • Cacomantis variolosus dumetorum (Gould, 1845) – northern Australia.
  • Cacomantis variolosus everetti (Hartert, 1925)[6] – Sulu Archipelago.
  • Cacomantis variolosus infaustus (Cabanis & Heine, 1863)[7] – North and south Maluku Islands (Morotai, Tidore, Ternate, Halmahera, Bacan, Obi, Seram Laut, Watubela, Kai), western Papuan Islands (Gebe, Waigeo, Salawati, Kofiau, Misool, Gorong), Biak, northwest and northern New Guinea east to the Sepik River and islands northeast of New Guinea as far as Umboi.[3]
  • Cacomantis variolosus macrocercus (Stresemann, 1921) – Bismarck Archipelago except Admiralty Islands and New Hanover.[3]
  • Cacomantis variolosus oreophilus (Hartert, 1925)[6] – Eastern and southern highlands of New Guinea.[3]
  • Cacomantis variolosus sepulcralis (S. Müller, 1843) – Tanintharyi Region of southern Myanmar, Thailand, Malay Peninsula, Sumatra, Java, Borneo, Lesser Sunda Islands to Philippines .[3] This subspecies is sometimes considered to be a distinct species, C. sepulcralis.[8]
  • Cacomantis variolosus variolosus (Vigors & Horsfield, 1827) – southeastern Australia.
  • Cacomantis variolosus virescens (Brüggemann, 1876) – Sulawesi, Buton, Tukangbesi, Banggai, Peleng.[3]
  • Cacomantis variolosus websteri (Hartert, 1898) – New Hanover.[3]

Most are geographically isolated, though some come into contact outside of the breeding season. For example, on Seram, members of the nominate subspecies variolosus join the local aeruginosus during the southern hemisphere winter.[9]

The convention of uniting the subspecies under C. variolosus dates back at least to Peters' checklist,[10] but there is uncertainty about whether they all belong there or not. For example, some ornithologists treat sepulcralis as a species in its own right (the Rusty-breasted cuckoo).[11][12] Likewise, aeruginosus is elevated by some to species level (the Moluccan cuckoo), but is placed by others under C. sepulcralis. Some ornithologists treat infaustus as part of C. variolosus and others as part of C. sepulcralis. The uncertainty arises because differences between the subspecies in characteristics such as plumage colour can be minimal, while differences in vocalisations are often significant.[9][11]

Description

The brush cuckoo is about 22–26 cm (8.7–10.2 in) long. The plumage of adult males and females is similar. The head is pale grey, the breast is buff, the back is grey-brown, and the underside of the tail is brown with white tips and bars.[13] The eye has a narrow, pale ring around it, and the feet are olive-pink. Juvenile plumage is heavily barred dark brown. The wings are sharply pointed and backswept in flight. Underwings are grey-brown with pale buff underwing coverts and a white or pale buff bar.[13] The brush cuckoo has a similar appearance to the pallid cuckoo, and especially the fan-tailed and chestnut-breasted cuckoo.[13]

Juvenile, SE Qld

Distribution and habitat

The brush cuckoo is found in northern and eastern Australia, the Solomon Islands, New Guinea, Malaysia, and other islands to the north of Australia.[13] It is resident in parts of its range, such as in Thailand, peninsular Malaysia, Cambodia and southern Vietnam, the Philippines, the Greater Sunda Islands, Lesser Sunda Islands, the Maluku Islands and Timor. It may migrate locally in New Guinea and northern Melanesia. In Australia, it is migratory in the southern part of its range.[3]

In Australia, it is known to inhabit a range of environments including rainforests, rainforest edges, mangrove forests, secondary forests, and plantations.[14]

Ecology

The brush cuckoo is a brood parasite. Its eggs are polymorphic,[15] meaning females lay specific egg types for specific hosts. In Australia, females lay three types of egg depending on their major host in the relevant region of their distribution.[16]

Across its Australian range the brush cuckoo exploits at least 58 other avian species,[14][17] though only a small number of species have been observed raising chicks through fledging. The species observed to raise chicks through fledging vary by subspecies of brush cuckoo. For C. v. dumetorum they include the purple-crowned fairywren, brown-backed honeyeater, bar-breasted honeyeater and for C. v. variolosus they include the rose robin, Norfolk robin, leaden flycatcher, restless flycatcher, satin flycatcher, rufous fantail and grey fantail.[17][16]

In Indonesia, observed hosts of the local subspecies of brush cuckoo include the grey-headed canary-flycatcher,[18] Javan blue flycatcher,[18][19] snowy-browed flycatcher,[18] Sunda forktail,[18] long-tailed shrike,[18][20] striated grassbird,[18][20] sooty-headed bulbul,[18] yellow-vented bulbul,[18] Malaysian pied fantail,[18][19][20] rufous-tailed fantail,[18] pied bush chat,[18] Buru white-eye[21] and Sangkar white-eye.[21]

Media

File:Brush Cuckoo song Nov2007.ogg

References

  1. ↑ BirdLife International (2016). "Cacomantis variolosus". IUCN Red List of Threatened Species 2016: e.T61434337A95233518. doi:10.2305/IUCN.UK.2016-3.RLTS.T61434337A95233518.en. https://www.iucnredlist.org/species/61434337/95233518. Retrieved 12 November 2021. 
  2. ↑ "Cacomantis variolosus". https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=554694#null. 
  3. ↑ 3.00 3.01 3.02 3.03 3.04 3.05 3.06 3.07 3.08 3.09 3.10 Payne, Robert B. (2005). The Cuckoos. Bird families of the world 15. New York: Oxford University Press. ISBN 0-19-850213-3. OCLC 77179370. 
  4. ↑ Rothschild, Walter; Hartert, Ernst (1901). "List of a collection of birds from Kulambangra and Florida Islands, in the Solomons group". Novitates Zoologicae 8 (3): 179–189. 
  5. ↑ Rothschild, Walter; Hartert, Ernst (1914). "The birds of the Admiralty Islands, north of German New Guinea". Novitates Zoologicae 21 (4): 281–298. 
  6. ↑ 6.0 6.1 Hartert, Ernst (1925). "Review of the genus Cacomantis Müll.". Novitates Zoologicae 32 (2): 164–174. doi:10.5962/bhl.part.4504. https://www.biodiversitylibrary.org/part/4504. 
  7. ↑ Cabanis, Jean; Heine, Ferdinand (1863). "Verzeichniss der ornithologischen Sammlung des Oberamtmann Ferdinand Heine auf Gut St. Burchard vor Halberstadt" (in German). Museum Heineanum 4 (1). 
  8. ↑ "Vocalizations and species limits of the plaintive cuckoo (Cacomantis merulinus) and the brush cuckoo (C. variolosus)". Folia Zoologica 52 (4): 399–411. 2003. 
  9. ↑ 9.0 9.1 Rheindt, Frank E.; Hutchinson, Robert O. (2007). "A photoshot odyssey through the confused avian taxonomy of Seram and Buru (southern Moluccas)". BirdingASIA 7: 18–38. ISSN 1744-537X. 
  10. ↑ Peters, James Lee (1940). Check-list of Birds of the World. 4. Cambridge, Massachusetts: Harvard University Press. pp. 24–26. doi:10.5962/bhl.title.14581. 
  11. ↑ 11.0 11.1 Lei, Fu-Min; Zhao, Hong-Feng; Wang, Gang; Payne, Robert B. (2003). "Vocalizations and species limits of the plaintive cuckoo (Cacomantis merulinus) and the brush cuckoo (C. variolosus)". Folia Zoologica 52 (4): 399–411. 
  12. ↑ Grim, Tomáš (2008). "Begging behavior of fledgling Rusty-breasted Cuckoo (Cacomantis sepulcralis)". The Wilson Journal of Ornithology 120 (4): 887–890. doi:10.1676/07-145.1. ISSN 1559-4491. 
  13. ↑ 13.0 13.1 13.2 13.3 Morcombe, Michael (2000). Field guide to Australian birds. Archerfield, Queensland: Steve Parish Publishing. pp. 190–191. ISBN 1-876282-10-X. 
  14. ↑ 14.0 14.1 de Geest, Patrick; Leitão, Ana V. (2017). "First record of Brush Cuckoo parasitism of the Lovely Fairy-wren". Australian Field Ornithology 34: 123–126. doi:10.20938/afo34123126. 
  15. ↑ Medina, Iliana; Troscianko, Jolyon; Stevens, Martin; Langmore, Naomi E. (2016-02-03). "Brood parasitism Is linked to egg pattern diversity within and among species of Australian passerines". The American Naturalist 187 (3): 351–362. doi:10.1086/684627. ISSN 0003-0147. PMID 26913947. 
  16. ↑ 16.0 16.1 Langmore, Naomi E. (2013). "Australian cuckoos and their adaptations for brood parasitism". Chinese Birds 4 (1): 86–92. doi:10.5122/cbirds.2013.0007. ISSN 1674-7674. 
  17. ↑ 17.0 17.1 "Cuckoo hosts in Australia". Australian Zoological Reviews 2: 1–67. 1989. 
  18. ↑ 18.00 18.01 18.02 18.03 18.04 18.05 18.06 18.07 18.08 18.09 18.10 "A further contribution to our Oological knowledge of the Island of Java (Indonesia)". Zoologische Verhandelingen 88 (1): 1–164. 1967. 
  19. ↑ 19.0 19.1 "Birds of the Botanical Gardens of Indonesia at Bogor". Berita Biologi 3 (4): 167–172. 1986. doi:10.14203/beritabiologi.v3i4.1342. ISSN 2337-8751. 
  20. ↑ 20.0 20.1 20.2 "Selection of Cuculidae to the hosts based on the external characteristics of the eggs". Biosaintifika: Journal of Biology & Biology Education 10 (1): 1–8. 2018. doi:10.15294/biosaintifika.v10i1.9939. ISSN 2338-7610. 
  21. ↑ 21.0 21.1 "First breeding record of Moluccan Drongo-cuckoo Surniculus musschenbroeki and brood parasitism of Black-crowned White-eye Zosterops atrifrons". BirdingASIA 37: 82–84. 2022. 

External links

Wikidata ☰ Q769564 entry



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