Biology:Dusky long-tailed cuckoo

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Short description: Species of bird

Dusky long-tailed cuckoo
Scientific classification edit
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Cuculiformes
Family: Cuculidae
Genus: Cercococcyx
Species:
C. mechowi
Binomial name
Cercococcyx mechowi
Cabanis, 1882

The dusky long-tailed cuckoo (Cercococcyx mechowi) is a species of cuckoo in the family Cuculidae. It is found in forests in Central Africa. The IUCN has assessed it as a least-concern species.

Taxonomy

The species was described by Jean Cabanis in 1882.[2] It is monotypic.[3] The specific epithet mechowi honours Friedrich Wilhelm Alexander von Mechow, a Prussian explorer.[4] The name occidentalis for a population with different songs is a nomen nudum.[5]

Description

The dusky long-tailed cuckoo is about 33 cm (13 in) long and weighs 50–61 g (1.8–2.2 oz). The head, nape and upperparts are dark brown, washed sooty-grey and with a purple-blue iridescence. The wings are dark brown, with buff and white spots. The underparts are white, with blackish-brown bars, and the vent is buff. The tail is long and graduated. The eyes are dark brown, the beak is greenish-black and the feet are yellow. The male and female are alike. The juvenile bird has a blackish throat and rufous bars on its upperparts. The nestling's skin is black, and it has a yellow rump and pale feet.[3]

Distribution and habitat

This cuckoo has a discontinuous distribution[3] and is found in Angola, most of Cameroon, the Central African Republic, Republic of the Congo, Democratic Republic of the Congo, Equatorial Guinea, Gabon, Tanzania, and Uganda.[1] Populations west of the Bakossi Mountains, in northwestern Cameroon, Ghana, Guinea, Ivory Coast, Liberia, Nigeria, Sierra Leone, and Togo, are now considered a distinct species, the whistling long-tailed cuckoo (C. lemaireae) due to their differing calls.[6] Its habitat is forests, preferring ones with dense undergrowth and lianas. It also occurs in tall secondary forests and forests along rivers.[3]

Behaviour

The dusky long-tailed cuckoo is often found in the undergrowth or mid-canopy. It eats caterpillars, ants, beetles, spiders, snails and seeds and joins mixed-species foraging flocks. Pairs often call from treetops.[3] Its calls include hu hee wheeu and a series of notes that accelerates and then slows and descends.[7] This cuckoo is a brood parasite. The blue-headed crested flycatcher, brown illadopsis and possibly the forest robin have been observed as hosts. Its breeding may be associated with the wet season.[3]

Status

The species does not appear to have substantial threats, and its population appears stable. The IUCN has assessed it as a least-concern species.[1]

References

  1. 1.0 1.1 1.2 BirdLife International (2020). "Cercococcyx mechowi". IUCN Red List of Threatened Species 2020: e.T181371184A181432007. doi:10.2305/IUCN.UK.2020-3.RLTS.T181371184A181432007.en. https://www.iucnredlist.org/species/181371184/181432007. Retrieved 16 November 2021. 
  2. Gill, Frank; Donsker, David, eds (2019). "Turacos, bustards, cuckoos, mesites, sandgrouse". World Bird List Version 9.2. International Ornithologists' Union. https://www.worldbirdnames.org/bow/turacos/. Retrieved 26 June 2019. 
  3. 3.0 3.1 3.2 3.3 3.4 3.5 Erritzøe, Johannes; Mann, Clive F.; Brammer, Frederik; Fuller, Richard A. (2012). Cuckoos of the World. A&C Black. pp. 414–415. ISBN 9781408142677. https://books.google.com/books?id=avxBNNeRhCYC&pg=PA414. 
  4. Jobling, James A. (2010). Helm Dictionary of Scientific Bird Names. Bloomsbury. p. 244. ISBN 9781408133262. https://books.google.com/books?id=-RfSBAAAQBAJ&pg=PA244. 
  5. Dowsett, Robert J.; Dowsett-Lemaire, Françoise (2015). "The status of the name 'occidentalis Chappuis' for the Dusky Long-tailed Cuckoo Cercococcyx mechowi". Bulletin of the British Ornithologists' Club 135 (3): 352–353. http://boc-online.org/bulletins/downloads/BBOC1354-Dowsett.pdf. 
  6. Collar, N. J.; Boesman, Peter (June 2019). "Two undescribed species of bird from West Africa". Bulletin of the British Ornithologists' Club 139 (2): 147–159. doi:10.25226/bboc.v139i2.2019.a7. ISSN 0007-1595. 
  7. Borrow, Nik; Demey, Ron (2013). Field Guide to the Birds of Ghana. Bloomsbury. p. 138. ISBN 9781408189023. https://books.google.com/books?id=tcwXBAAAQBAJ&pg=PA138. 

Wikidata ☰ Q859626 entry