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White-fronted chat

White-fronted chat
male
female
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Meliphagidae
Genus: Epthianura
Species:
E. albifrons
Binomial name
Epthianura albifrons
(Jardine & Selby, 1828)
Synonyms[2]

Acanthiza albifrons Jardine & Selby
Fluvicola leucocephala Lesson
Cinura torquata Brehm

The white-fronted chat (Epthianura albifrons) is a species of bird in the honeyeater family Meliphagidae native to southern Australia. The male has a white face bordered by a black breast band. It is insectivorous.

Taxonomy

Sir Willam Jardine and P.J.Selby described the white-fronted chat in 1828 as Acanthiza albifrons.[2] Lesson described it in 1844 as Fluvicola leucocephala, and Brehm as Cinura torquata in 1845.[2] John Gould named it Epthianura albifrons in 1838. The derivation of the generic name Epthianura is obscure, coming either from the Ancient Greek ephthos 'refined' or ephthinaō 'wasting away' and oura 'tail' (referring to the "short and truncated tail").[3] The specific epithet albifrons derives from the Latin albus 'white' and frons 'forehead'.[4]

The species is monotypic; that is, no subspecies are recognised. Tasmanian birds were thought to have longer bills but this has not been borne out on further investigation.[5]

This species has collected many vernacular names. From its distinctive call were derived the names (banded) tintack, gar and tang, and the males' resemblance to a nun's habit led to the name (white-fronted) nun, and similarly moonface, moonbird, baldyhead, baldy, ringneck, ringlet and singlebar also come from its appearance.[6][7] The derivation of other names, such as clipper and tripper, is unclear.[3]

Description

Adult white-fronted chats are 11–13 cm (4.3–5.1 in) in length and weigh 11–17 g (0.4–0.6 oz).[8] The male has a white face and breast bordered by a black band across the breast and nape to the hind crown.[7][9] The upperparts are silver-grey, wings and upper tail coverts are dark brown, and the abdomen is white.[7] The eyes of the male are pinkish-white, whereas the eyes of the female are brown.[10][11] The female has grey-brown upperparts and white or pale grey underparts with a fainter blackish-brown breast band.[10][11]

The contact call, a metallic tang sound given in flight at irregular intervals, has been likened to the twanging of a rubber band.[7][6][9]

Distribution and habitat

The white-fronted chat is endemic to Australia, being found across southern Australia (including Tasmania) from Shark Bay in Western Australia around to the Darling Downs in Queensland.[6][9] Its preferred habitat is open country with low vegetation, including samphire (Tecticornia), tea-tree (Melaleuca) and heath, in saltmarshes and coastal dunes, in swamp or mangrove margins and around inland salt lakes.[10][6][7] It is generally sedentary in the wetter southern part of its range, though it may be nomadic in more arid areas.[6][7]

Behaviour

The white-fronted chat is usually conspicuous, perching prominently on bushes, tussocks or fences.[6] However, it is quite secretive in approaching the nest, engaging in distraction displays.[7] They are a gregarious species, often nesting in small colonies.[7]

Breeding

In the breeding season from June to January, the female builds a cup-shaped nest of grasses and twigs, lined with fine grass, feathers, wool and hair, which is well concealed in a tussock or a low shrub.[8][6] A clutch of 2 to 4 eggs is incubated by both parents for 13–14 days.[7] The eggs measure 17 mm × 14 mm (0.67 in × 0.55 in) and are white, spotted with reddish-brown at the large end.[7][6] The chicks are fed by both parents and fledge after 10–15 days.[8] The nests are occasionally parasitised by Horsfield's bronze-cuckoo (Chrysococcyx basalis).[8]

Feeding

The white-fronted chat usually forages singly or in small parties, seeking insects in low bushes or on the ground.[7] Their diet consists of a wide variety of insects, including beetles, ants, bees, grasshoppers, moths and caterpillars, as well as spiders, acacia seeds, and nectar.[8]

Conservation status

The white-fronted chat has been listed as vulnerable in New South Wales, with a significant decline of 65% recorded for the period 1981–2005.[12][13] It is considered threatened in the Adelaide-Mount Lofty region of South Australia, where it has become much rarer.[14] However, it is listed globally as Least Concern on the IUCN Red List.[1]

References

  1. ^ a b BirdLife International (2016). "Epthianura albifrons". IUCN Red List of Threatened Species. 2016: e.T22704484A93971051. doi:10.2305/IUCN.UK.2016-3.RLTS.T22704484A93971051.en. Retrieved 13 November 2021.
  2. ^ a b c Department of the Environment, Water, Heritage and the Arts (30 August 2011). "Species Epthianura (Epthianura) albifrons (Jardine & Selby, 1828)". Australian Biological Resources Study: Australian Faunal Directory. Commonwealth of Australia. Retrieved 1 April 2014.
  3. ^ a b Fraser, Ian; Gray, Jeannie (2013). Australian Bird Names; a complete guide. CSIRO Publishing. p. 208. ISBN 9780643104693.
  4. ^ Jobling, James A. (2010). "Helm Dictionary of Scientific Bird-names". Retrieved 2020-05-04.
  5. ^ Schodde, Richard; Mason, Ian J. (1999). The Directory of Australian Birds: Passerines. Melbourne: CSIRO Publishing. ISBN 978-0-643-06456-0. OCLC 499953986.
  6. ^ a b c d e f g h Pizzey, Graham; Doyle, Roy (1980) A Field Guide to the Birds of Australia. Collins Publishers, Sydney. ISBN 073222436-5
  7. ^ a b c d e f g h i j k Morcombe, Michael (2012) Field Guide to Australian Birds. Pascal Press, Glebe, NSW. Revised edition. ISBN 978174021417-9
  8. ^ a b c d e Matthew, J. and E. de Juana (2020). "White-fronted Chat (Epthianura albifrons), version 1.0." In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.whfcha1.01
  9. ^ a b c "White-fronted Chat". Birds in Backyards. Birdlife Australia. Retrieved 3 April 2014.
  10. ^ a b c Simpson, Ken, Day, N. and Trusler, P. (6th edn., 1999). Field Guide to the Birds of Australia. Ringwood, Victoria: Penguin Books Australia ISBN 067087918-5.
  11. ^ a b Slater, Peter (1974). A Field Guide to Australian Birds:Passerines. Adelaide: Rigby. p. 197. ISBN 0-85179-813-6.
  12. ^ Jenner, B., French, K., Oxenham, K. and Major, R.E. (2011). "Population decline of the White-fronted Chat (Epthianura albifrons) in New South Wales, Australia." Emu111: 84–91.
  13. ^ Major, Richard (28 February 2011). "White-fronted Chat Epthianura albifrons (Jardine & Selby, 1828) - vulnerable species listing". NSW Scientific Committee - Determinations. NSW Govt Office of Environment and Heritage. Retrieved 1 April 2014.
  14. ^ Biodiversity Conservation Unit; Adelaide Region (May 2008). "Epthianura albifrons" (PDF). Threatened Species - Adelaide Mount Lofty Ranges. Department for Conservation and Heritage, SA Government. Retrieved 3 April 2014.
Quelle: https://en.wikipedia.org/wiki/White-fronted_chat