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 NT    Short-tailed Grasswren* Id (Atlas): 735
    Amytornis merrotsyi Endemic

Description (10)
Image of Short-tailed Grasswren
 

Other Names (World)
Short-tailed Grasswren, Chestnut-mantled Grasswren

Family
Maluridae (Fairy-wrens)

Size
15 - 18.50 cm

First Described (Guide)
Mellor, 1913

Derivation
A-my-torn'-is - Gk, amytis, daughter of Astyages; Gk, ornis, a bird: merrotsyi - after Mr. A.L. Merrotsy, who collected the original specimen

Abundance (Guide)
LC

Locally common, restricted range.

Habitat
Stony hillsides, ridges, rocky gullies and gorges covered in spinifex, usually with an overstorey of trees, such as mallee eucalypt and cyprus pines, and shrubs.

Range (Guide)
Australia.

Image of Range of Short-tailed Grasswren
Flinders and Gawler Ranges, SA.
 
Rarity Status
Currently this species is not classified as a rarity in this country OR information has not been updated.

Population
Estimated population is 5,000 (2010).

Status NT
Habitat destruction and degradation through an increase in the frequency and extent of fires, both natural and anthropogenic, and grazing, are the main threats.

For more information see BirdLife International Species Factsheet.

Food
Insects, mainly beetles and ants, but also seeds of spinifex.

Voice
A squeak is uttered in alarm. Contact calls include a high-pitched 'see' and 'see-see'.

Xeno-Canto Sound Files (more (4)...)

 
Short-tailed Grasswren (Amytornis merrotsyi) [XC327190]
     by Pieter de Groot Boersma from Flinders Ranges, South Australia, Australia (call)

 
Short-tailed Grasswren (Amytornis merrotsyi) [XC372221]
     by Eric S. J. Tan from Willow Springs, South Australia, Australia (call, soft twittering)

Breeding Season (Guide)
July - March.

J F M A M J J A S O N D
   
   
   
   
   
   
   
   
   
   
   
   


Nest
Partly domed, composed of bark-fiber and dried blades of grass, built on a foundation of bark, in or under the shelter of a spinifex tussock, close to the ground.

Eggs (Guide)
Usually 2, sometimes 3; white, sparingly speckled and blotched with red-browns and greys, sometimes more at the larger end; swollen-oval; about 20 x 15 mm. Incubation: 13 - 14 days; by female.

Young
Altricial, nidicolous.

Subspecies
Amytornis striatus (Sibley and Monroe 1990, 1993) has been split into Striated Grasswren (Amytornis striatus) and Short-tailed Grasswren (Amytornis merrotsyi) following Christidis (1999).

Forms a superspecies with Striated Grasswren (Amytornis striatus). Until recently considered conspecific, but falls outside range of intraspecific variation found in latter species, and possibly sympatric with it in Gawler Ranges. Separation at species level further supported by protein evidence.

The following 2 subspecies are recognised:

  • merrotsyi Mellor, 1913   -  Stony hillsides of Flinders and Gawler Ranges (South Australia).
  • pedleri Christidis, Horton & Norman, 2008   -  Gawler Ranges.


Similar Species
Striated Grasswren (Amytornis striatus) which has a longer tail and Thick-billed Grasswren (Amytornis modestus) which has a longer tail and lacks the black moustachial stripe.


References
See References.

The Field Guide to the Birds of Australia Pizzey, G., and Knight, E., 1997, Angus & Robertson, Sydney ISBN 0 207 19691 5
Field Guide to Australian Birds Morecombe, M., 2000, Steve Parish Publishing Pty Ltd. ISBN 1 876282 10 X
Field Guide to the Birds of Australia Simpson, K., and Day, N., 1999, 6th Edition, Viking ISBN 0 670 87918 5
Reader's Digest Complete Book of Australian Birds 1988, 2nd Edition, Reader's Digest ISBN 0 949819 99 9
What Bird is That? 1984, Revised Edition, Angus & Robertson, Sydney ISBN 0 207 14846 5
Handbook of Australian, New Zealand & Antarctic Birds 1990 - , Oxford University Press, Melbourne ISBN 0 19 553244 9


Files:
JPG files for Short-tailed Grasswren (Amytornis merrotsyi) - 10 files


More Information

BirdLife International

For more information about the Short-tailed Grasswren see... Show Articles BirdLife International Species Factsheet.


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