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| − | [[ | + | [[Image:Burdekin_Duck_pair.jpg|thumb|550px|right|Photo © by {{user|kctsang|kctsang}}<br/>[[Singapore]]]] |
'''Alternative name: Burdekin Duck''' | '''Alternative name: Burdekin Duck''' | ||
| − | ;[[:Category: | + | ;[[:Category:Radjah|Radjah]] radjah |
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==Identification== | ==Identification== | ||
| − | Both the male and female are mostly white, with dark wingtips and a distinctive "collar" of dark feathers. These birds have green bands on the tops of their wings. The female has a harsh rattle and the male has a whistle. | + | [[Image:Radjah_Shelduck.jpg|thumb|350px|right|Photo © by {{user|RMD|RMD}}<br/>LNhulunbuy, [[Northern Territory]], [[Australia]]]] |
| + | Both the male and female are mostly white, with dark wingtips and a distinctive "collar" of dark feathers. These birds have green bands on the tops of their wings. The female has a harsh rattle and the male has a whistle.<sup>[[#References|[2]]]</sup> | ||
| − | The Radjah Shelduck is listed as a protected bird in all states of Australia | + | The Radjah Shelduck is listed as a protected bird in all states of Australia <sup>[[#References|[2]]]</sup> |
==Distribution== | ==Distribution== | ||
[[New Guinea]] and [[Australia]] | [[New Guinea]] and [[Australia]] | ||
==Taxonomy== | ==Taxonomy== | ||
| − | This bird | + | This bird was placed in the genus [[Tadorna]], but it differs markedly in external morphology, and mtDNA cytochrome b sequence data (Sraml et al. 1996) suggests its status was reinvestigated.<sup>[[#References|[2]]]</sup> |
| + | ====Subspecies==== | ||
| + | There are two subspecies<sup>[[#References|1]]</sup> | ||
| + | *''R. r. radjah'' | ||
| + | **Moluccas to [[New Guinea]] | ||
| + | *''R. r. rufitergum'' | ||
| + | **Northern and eastern coastal [[Australia]] | ||
==Habitat== | ==Habitat== | ||
Mangrove forests and coastline | Mangrove forests and coastline | ||
==Behaviour== | ==Behaviour== | ||
| − | The Radjah Shelduck forms long-term pair-bonds, and is usually encountered in lone pairs or small flocks. During the wet season the males commonly become very irritable, and have been observed attacking their mates. | + | The Radjah Shelduck forms long-term pair-bonds, and is usually encountered in lone pairs or small flocks. During the wet season the males commonly become very irritable, and have been observed attacking their mates.<sup>[[#References|[2]]]</sup> |
| − | Diet | + | ====Diet==== |
| − | + | Molluscs, insects, sedge materials and algae. | |
| − | + | ====Breeding==== | |
| − | + | Pairs start searching for nesting sites during the months of January and February. They nest close to their primary food source.<sup>[[#References|[2]]]</sup> | |
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| + | Its nesting materials is self-supplied down feathers. Egg-laying is usually done by May or June; the clutches range from 6 to 12 eggs. Incubation time is about 30 days.<sup>[[#References|[2]]]</sup> | ||
| + | ==References== | ||
| + | #{{Ref-Clements6thAug17}}#Avianweb | ||
| + | {{ref}} | ||
==External Links== | ==External Links== | ||
| − | {{GSearch| | + | {{GSearch|Radjah}} <!--EDITORS: this seems to work better than using the tautonomous name search--> |
| + | {{GS-checked}} | ||
| + | <br /> | ||
| + | <br /> | ||
| − | [[Category:Birds]] | + | [[Category:Birds]] [[Category:Radjah]] |
Latest revision as of 19:55, 7 January 2022
Alternative name: Burdekin Duck
- Radjah radjah
Identification
Both the male and female are mostly white, with dark wingtips and a distinctive "collar" of dark feathers. These birds have green bands on the tops of their wings. The female has a harsh rattle and the male has a whistle.[2]
The Radjah Shelduck is listed as a protected bird in all states of Australia [2]
Distribution
New Guinea and Australia
Taxonomy
This bird was placed in the genus Tadorna, but it differs markedly in external morphology, and mtDNA cytochrome b sequence data (Sraml et al. 1996) suggests its status was reinvestigated.[2]
Subspecies
There are two subspecies1
- R. r. radjah
- Moluccas to New Guinea
- R. r. rufitergum
- Northern and eastern coastal Australia
Habitat
Mangrove forests and coastline
Behaviour
The Radjah Shelduck forms long-term pair-bonds, and is usually encountered in lone pairs or small flocks. During the wet season the males commonly become very irritable, and have been observed attacking their mates.[2]
Diet
Molluscs, insects, sedge materials and algae.
Breeding
Pairs start searching for nesting sites during the months of January and February. They nest close to their primary food source.[2]
Its nesting materials is self-supplied down feathers. Egg-laying is usually done by May or June; the clutches range from 6 to 12 eggs. Incubation time is about 30 days.[2]
References
- Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2017. The eBird/Clements checklist of birds of the world: v2017, with updates to August 2017. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
- Avianweb
Recommended Citation
- BirdForum Opus contributors. (2024) Radjah Shelduck. In: BirdForum, the forum for wild birds and birding. Retrieved 17 May 2024 from https://www.birdforum.net/opus/Radjah_Shelduck
External Links
GSearch checked for 2020 platform.
