Yellow-throated scrubwren

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Yellow-throated scrubwren
Yellow-throated Thornbill 1 - Brunkerville.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Acanthizidae
Genus: Neosericornis
Mathews, 1912
Species:
N. citreogularis
Binomial name
Neosericornis citreogularis
(Gould, 1838)
Subspecies [2]
  • N. c. cairnsi - (Mathews, 1912)
  • N. c. citreogularis - (Gould, 1838)
  • N. c. intermedius - (Mathews, 1912)
Synonyms

Sericornis citreogularis

The yellow-throated scrubwren (Neosericornis citreogularis) is a passerine in the family Acanthizidae that is found in parts of eastern coastal Australia. It was formerly placed in the genus Sericornis , but is now the only species in the genus Neosericornis.

Contents

A small ground-dwelling bird that inhabits wet forest or rainforest, it is mainly insectivorous. The bird has a distinctive yellow throat and eyebrow. The male face is black and the female brown. The crown and upperparts are dark- to olive-brown, and the underparts cream, white or washed-out olive. The wings are dark brown and edged with yellow. Breeding twice or more in a long breeding season, it nests in large, suspended, pear-shaped structures. Often over water, they resemble flood debris, which they are often placed nearby. These nests are the preferred roosts of the golden-tipped bat (Phoniscus papuensis).

Taxonomy

The yellow-throated scrubwren was described and illustrated by the English bird artist and ornithologist John Gould in 1838, and given the binomial name Sericornis citreogularis. [3] The specific epithet is derived from the Latin terms cǐtreus 'pertaining to citrus' and gǔla 'throat', hence 'yellow-throated'. [4] The northern subspecies cairnsii was described by amateur ornithologist Gregory Mathews in 1912. [5] The yellow-throated scrubwren was formerly placed in the genus Sericornis but a phylogenetic analysis of mitochondrial DNA sequences published in 2018 found that the species was not closely related to other scrubwrens nor to the mouse-warblers. [6] The species was therefore assigned to a separate genus Neosericornis, which had been proposed by Mathews in 1912. [7] [8] The generic name Neosericornis derives from the Ancient Greek neos 'new', serikos 'silken', and ornis 'bird'. [9]

Description

In Lamington National Park, Queensland, Australia Yellow-throated Scrubwren JCB.jpg
In Lamington National Park, Queensland, Australia
The scrubwrens by Neville William Cayley, including the yellow-throated scrubwrens on the bottom left. Cayley p20 Scrubwrens.png
The scrubwrens by Neville William Cayley, including the yellow-throated scrubwrens on the bottom left.

The yellow-throated scrubwren measures 12.5–15 cm (5–6 in) in length. The male bird has a black masked face and ear coverts, with yellow throat and eyebrow. The iris is reddish and upperparts brownish and underparts paler. The wing primaries are yellow and relatively long legs pinkish or cream. The female has a brownish face. Calls include a loud harsh chatter, [10] and a lively song, the latter can be a response to a loud noise such as a car door slamming. [11]

Distribution and habitat

The species is found in two disjunct distributions; in coastal north Queensland from Cooktown to Townsville, and from Hervey Bay in southern coastal Queensland south through to southeastern New South Wales. [12] The usual habitat is rainforest gullies, generally with streams nearby. In the Sydney Basin this may be the Illawarra escarpment, and wetter places in the Dharug- and Royal National Parks. [11]

Insectivorous, they feed at ground level, unlike the related large-billed scrubwren (S. magnirostris) which lives in the same wet forest habitat but forages higher in the leaf layer and on branches. [11]

Breeding

Breeding season can extend from June to March, with two or more broods laid in a season. The nest is a large structure of long pieces of dried grasses and leaves, sticks, palm fibre, bark, and ferns and feathers for lining. Pear-shaped, it hangs above the ground or water, suspended from a vine or branch. It may be mistaken for flood debris and is often constructed near it. A clutch of two or three tapered oval 26 mm × 18 mm (1.0 in × 0.7 in) eggs is laid; they vary from brownish-purple to pale brownish-white with darker spots or blotches. There is a cap of darker colour at the large end of the eggs. [12]

The nest may be expanded in subsequent years by the birds adding an extra chamber onto it. [11] They also appear to be the preferred daytime roosting sites of the golden-tipped bat (Phoniscus papuensis). [13]

Notes

  1. ↑ BirdLife International (2012). "Sericornis citreogularis". IUCN Red List of Threatened Species . 2012. Retrieved 26 November 2013.
  2. ↑ Gill F, D Donsker & P Rasmussen (Eds). 2020. IOC World Bird List (v10.2). doi : 10.14344/IOC.ML.10.2.
  3. ↑ Gould, John (1838). A synopsis of the birds of Australia, and the adjacent islands. London: self. Part 4, Plate 58, Fig. 4 and text.
  4. ↑ Simpson, D.P. (1979). Cassell's Latin Dictionary (5th ed.). London: Cassell Ltd. p. 883. ISBN   978-0-304-52257-6.
  5. ↑ Mathews, Gregory (1911). "On some necessary alterations in the nomenclature of birds". Novitates Zoologicae. 18: 1–446 [354]. doi:10.5962/bhl.part.1688.
  6. ↑ Norman, J.A.; Christidis, L.; Schodde, R. (2018). "Ecological and evolutionary diversification in the Australo-Papuan scrubwrens (Sericornis) and mouse-warblers (Crateroscelis), with a revision of the subfamily Sericornithinae (Aves: Passeriformes: Acanthizidae)". Organisms Diversity & Evolution. 18 (2): 241–259. doi:10.1007/s13127-018-0364-8. S2CID   46967802.
  7. ↑ Mathews, Gregory (1911). "On some necessary alterations in the nomenclature of birds". Novitates Zoologicae. 18: 1–446 [353]. doi:10.5962/bhl.part.1688.
  8. ↑ Gill, Frank; Donsker, David, eds. (2019). "Bristlebirds, pardalotes, Australasian warblers". World Bird List Version 9.1. International Ornithologists' Union. Retrieved 21 January 2019.
  9. ↑ Jobling, James A. (2010). "Helm Dictionary of Scientific Bird-names" . Retrieved 2020-04-23.
  10. ↑ Simpson K, Day N, Trusler P (1993). Field Guide to the Birds of Australia. Ringwood, Victoria: Viking O'Neil. p. 212. ISBN   978-0-670-90478-5.
  11. 1 2 3 4 Roberts, Peter (1993). Birdwatcher's Guide to the Sydney Region. Kenthurst, New South Wales: Kangaroo Press. pp. 132–33. ISBN   978-0-86417-565-6.
  12. 1 2 Beruldsen, G (2003). Australian Birds: Their Nests and Eggs. Kenmore Hills, Qld: self. p. 295. ISBN   978-0-646-42798-0.
  13. ↑ Schulz M (2000). "Roosts used by the golden-tipped bat Kerivoula papuensis (Chiroptera: Vespertilionidae)" (PDF). Journal of Zoology. 250 (4): 467–78. doi:10.1017/S0952836900004052 . Retrieved 2008-01-10.

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References

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