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Southern Emuwren Stipiturus malachurus Scientific name definitions

Ian Rowley and Eleanor Russell
Version: 1.0 — Published March 4, 2020
Text last updated January 29, 2013

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Field Identification

15·5–19 cm; 5·5–9 g. Small-bodied malurid with tail twice as long as body , filamentous rectrices loosely webbed. Male nominate race is black-streaked rusty brown above, front of crown more rufous and unstreaked, short eyebrow sky-blue; ear-coverts light brown, sometimes with paler streaks; upperwing grey-brown, edged rufous; throat and upper breast sky-blue , rest of underparts rufous, whiter on belly; iris brown; bill black; legs brown. Female is as male, but upper surface more streaked, no rufous on forecrown, no blue above eye, all reddish-brown below; bill dark brown, with light grey base of lower mandible. Immature is as female, but duller and with more diffuse streaking, bill brown, male (from 5 days of age) has blue-grey throat and breast. Race <em>littleri</em> is smaller and more rufous than nominate; polionotum is paler, back mid-grey with olive tones; intermedius has much darker and more heavily streaked olive-grey back, male forecrown olive-brown with black streaking; halmaturinus is largest, paler, greyer back with fine black streaks, plain dull rufous forecrown; parimeda has blue areas paler, back pale olive-grey with fine black streaks, flanks pallid tawny, belly white; <em>westernensis</em> has olive-grey back, white-streaked ear-coverts, male with rufous forecrown streaked black, long blue eyebrow extending to lores; hartogi is smaller, paler and greyer, streaks on head and back almost absent.

Systematics History

Editor's Note: This article requires further editing work to merge existing content into the appropriate Subspecies sections. Please bear with us while this update takes place.

Has been treated as conspecific with S. mallee. DNA study (1) found that distributional boundaries and relationships among E races were uncertain; further research needed. Race polionotum spelt both “polionotum” and “polionota” in original description; former selected by First Reviser (2). Eight subspecies recognized.

Subspecies


SUBSPECIES

Stipiturus malachurus malachurus Scientific name definitions

Distribution

SE Queensland coast (from Noosa) S, E of Dividing Range, to SE Victoria (W to Otway Range).

SUBSPECIES

Stipiturus malachurus littleri Scientific name definitions

Distribution

Tasmania.

SUBSPECIES

Stipiturus malachurus polionotum Scientific name definitions

Distribution

SE South Australia and SW Victoria.

SUBSPECIES

Stipiturus malachurus intermedius Scientific name definitions

Distribution

Mt Lofty Ranges, in SE South Australia.

SUBSPECIES

Stipiturus malachurus halmaturinus Scientific name definitions

Distribution

Kangaroo I, off SE South Australia.

SUBSPECIES

Stipiturus malachurus parimeda Scientific name definitions

Distribution

S Eyre Peninsula, in South Australia.

SUBSPECIES

Stipiturus malachurus westernensis Scientific name definitions

Distribution

SW Western Australia.

SUBSPECIES

Stipiturus malachurus hartogi Scientific name definitions

Distribution

Dirk Hartog I, off Western Australia.

Distribution

Editor's Note: Additional distribution information for this taxon can be found in the 'Subspecies' article above. In the future we will develop a range-wide distribution article.

Habitat

Coastal heaths, swamps, dune thickets, cutting rushes (Gahnia) and button-grass (Gymnoschoenus sphaerocephalus).

Movement

Resident. During autumn and winter travels locally in small groups; limited ringing studies reveal movement of up to 1 km.

Diet and Foraging

Insectivorous. Forages by hop-search on ground, with tail held erect; probes vegetation and snatches resting insects. Beats moths (Lepidoptera) to remove wings; splits stems of rushes (Juncus) to reach larvae concealed inside. Rarely flies, and keeps in dense cover, especially when windy. In small groups, probably family parties, outside breeding season.

Sounds and Vocal Behavior

Song a soft descending trill with a few short introductory notes, similar to Malurus song but weaker. Contact call a high-pitched, soft “pree-pree”, continuously during foraging; alarm a shrill scream, “steet, steet”.

Breeding

Aug–Jan; may start second nest c. 8 weeks after first brood fledged. Breeds as a pair; territorial; male helpers present with 8% of pairs. Nest built by female, fed by male during 10-day construction period; a domed oval with side entrance, more spherical than Malurus nests, loosely woven from grass and moss, lined with fine grass, plant down and feathers or fur, placed in dense shrub or grass tussock. Clutch 2–4 eggs, mainly 3; incubation by female, period 13–14 days; chicks fed by both parents (and helpers), leave nest at 11–15 days; fledglings keep hidden for a week, become independent at 2 months, remain with parents at least until winter. Nests parasitized by Horsfield’s Bronze-cuckoo (Chalcites basalis), Shining Bronze-cuckoo (Chalcites lucidus), Fan-tailed Cuckoo (Cacomantis flabelliformis), Pallid Cuckoo (Heteroscenes pallidus), Brush Cuckoo (Cacomantis variolosus).
Not globally threatened. Locally abundant in suitable habitat; uncommon to rare in parts of range. Restricted races becoming rare as coastal heaths, swamps and dune thickets come under increasing pressure from urban development. In regional assessments of conservation status of races, intermedius rated as “Critically Endangered” and both parimeda and hartogi as “Vulnerable”; conservation of scarce habitat necessary for these taxa.
Distribution of the Southern Emuwren - Range Map
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Distribution of the Southern Emuwren

Recommended Citation

Rowley, I. and E. Russell (2020). Southern Emuwren (Stipiturus malachurus), 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.souemu1.01
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