Grå törntrast
| Grå törntrast Status i världen: Livskraftig (lc)[1] | |
 | |
| Systematik | |
|---|---|
| Domän | Eukaryoter Eukaryota |
| Rike | Djur Animalia |
| Stam | Ryggsträngsdjur Chordata |
| Understam | Ryggradsdjur Vertebrata |
| Klass | Fåglar Aves |
| Ordning | Tättingar Passeriformes |
| Familj | Visslare Pachycephalidae |
| Släkte | Colluricincla |
| Art | Grå törntrast C. harmonica |
| Vetenskapligt namn | |
| § Colluricincla harmonica | |
| Auktor | (Latham, 1801) |
Grå törntrast[2] (Colluricincla harmonica) är en fågel i familjen visslare inom ordningen tättingar.[3]
Utseende och läte
Grå törntrast är en robust sångfågel med en kraftig och spetsig näbb. Fjäderdräkten är genongående gråaktig förutom brunt på ryggen och en ljus fläck på tygeln. Ungfågeln liknar den adulta, dock med streckat bröst. Sången är mycket vacker, bestående av fem toner.
Utbredning och systematik
Grå törntrast delas in i sex underarter med följande utbredning:[3]
- Colluricincla harmonica tachycrypta – kustnära sydöstra Nya Guinea
- Colluricincla harmonica brunnea – norra Australien (Fitzroy River, Western Australia till nordvästra Queensland)
- Colluricincla harmonica superciliosa – norra Queensland (Torres sund och norra Kap Yorkhalvön)
- Colluricincla harmonica harmonica – östra Australien (norra och centrala Queensland till Victoria och östra South Australia)
- Colluricincla harmonica strigata – Tasmanien, King Island och Flinders Island (Bass sund)
- Colluricincla harmonica rufiventris – södra Australien (centrala och sydvästra Australien, Flinders Island)
Underarten tachycrypta inkluderas ofta i superciliosa.[4]
Levnadssätt
Grå törntrast bebor de flesta beskogade områdena. Den födosöker i par från marken upp till trädtopparna.
Status och hot
Arten har ett stort utbredningsområde, men tros minska i antal, dock inte tillräckligt kraftigt för att den ska betraktas som hotad.[1] Internationella naturvårdsunionen IUCN listar arten som livskraftig (LC).[1]
Bildgalleri
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Noter
- ^ [a b c] Birdlife International 2012 Colluricincla harmonica Från: IUCN 2015. IUCN Red List of Threatened Species. Version 2015.4 www.iucnredlist.org. Läst 1 februari 2016.
- ^ BirdLife Sverige (2020) Officiella listan över svenska namn på alla världens fågelarter
- ^ [a b] Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood (2015) The eBird/Clements checklist of birds of the world: Version 2015 http://www.birds.cornell.edu/clementschecklist/download, läst 2016-02-11
- ^ Gill F, D Donsker & P Rasmussen (Eds). 2021. IOC World Bird List (v11.1). doi : 10.14344/IOC.ML.11.1.
Externa länkar
Wikimedia Commons har media som rör grå törntrast.
Wikispecies har information om Colluricincla harmonica.- Läten på xeno-canto.org
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Media som används på denna webbplats
Grey shrike thrush.jpg
Författare/Upphovsman:
,
Licens: GFDL 1.2
Grey Shrike Thrush juvenile (Colluricincla harmonica), Swifts Creek, Victoria
Författare/Upphovsman:
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Grey Shrike Thrush juvenile (Colluricincla harmonica), Swifts Creek, Victoria
Colluricincla harmonica mortimer.jpg
Författare/Upphovsman: JJ Harrison (https://www.jjharrison.com.au/), Licens: CC BY-SA 3.0
Grey Shrike-thrush (Colluricincla harmonica), Mortimer Bay, Tasmania, Australia.
Författare/Upphovsman: JJ Harrison (https://www.jjharrison.com.au/), Licens: CC BY-SA 3.0
Grey Shrike-thrush (Colluricincla harmonica), Mortimer Bay, Tasmania, Australia.
Grey Shrike-Thrush.ogg
The beautiful, melodic song of a Grey Shrike-Thrush, an otherwise unremarkable bird of the Australian bush. This bird is not an out-and-out mimic in the same way that the Superb Lyrebird is, but there are several instances of mimicry in this recording. The original recording was made on a cassette tape recorder in the bush, while the bird sat in a tree branch some 5 to 8 metres above me. It would give forth with a short burst of song, then stop and eye me off and then burst out in song again. The original birdsong, including stoppages, went for some minutes but, since entering the digital age, I have not only cleaned up the recording (a little) but shortened it substantially by cutting out the quiet sections.
The beautiful, melodic song of a Grey Shrike-Thrush, an otherwise unremarkable bird of the Australian bush. This bird is not an out-and-out mimic in the same way that the Superb Lyrebird is, but there are several instances of mimicry in this recording. The original recording was made on a cassette tape recorder in the bush, while the bird sat in a tree branch some 5 to 8 metres above me. It would give forth with a short burst of song, then stop and eye me off and then burst out in song again. The original birdsong, including stoppages, went for some minutes but, since entering the digital age, I have not only cleaned up the recording (a little) but shortened it substantially by cutting out the quiet sections.
Grey Shrike-thrush.ogg
Författare/Upphovsman: Aviceda, Licens: CC BY-SA 3.0
Grey Shrike-thrush (Colluricincla harmonica) Kobble Creek, SE Queensland, Australia
Författare/Upphovsman: Aviceda, Licens: CC BY-SA 3.0
Grey Shrike-thrush (Colluricincla harmonica) Kobble Creek, SE Queensland, Australia
Colluricincla harmonica Dorrigo NSW.jpg
Författare/Upphovsman: Alchemist-hp (talk) (www.pse-mendelejew.de), Licens: FAL
Grey Shrikethrush (Colluricincla harmonica) in Dorrigo, New South Wales, Australia.
Författare/Upphovsman: Alchemist-hp (talk) (www.pse-mendelejew.de), Licens: FAL
Grey Shrikethrush (Colluricincla harmonica) in Dorrigo, New South Wales, Australia.
Colluricincla harmonica -Tasmania-8.jpg
Författare/Upphovsman: Sammy Sam, Licens: CC BY-SA 3.0
A Grey Shrikethrush in Tasmania.
Författare/Upphovsman: Sammy Sam, Licens: CC BY-SA 3.0
A Grey Shrikethrush in Tasmania.
Golden Whistler and Grey Shrike-thrush.ogg
Författare/Upphovsman: Wardie44, Licens: CC BY-SA 3.0
Audio file of Australian birds, Golden Whistler and Grey Shrike-thrush. The Golden Whistler is the chief subject of the recording, while the Grey Shrike-thrush interposes its particularly beautiful call a couple of times, including right at the end of the recording. An unidentified bird also interrupts proceedings but it is fairly quiet, so doesn't detract from the main calls. (I hope) The original recording was made on a Sony MiniDisc Recorder, using a Sony stereo microphone. The location was in the Cataract River gorge at Douglas Park, N.S.W., Australia, to the south-west of the urban area of Sydney.
Författare/Upphovsman: Wardie44, Licens: CC BY-SA 3.0
Audio file of Australian birds, Golden Whistler and Grey Shrike-thrush. The Golden Whistler is the chief subject of the recording, while the Grey Shrike-thrush interposes its particularly beautiful call a couple of times, including right at the end of the recording. An unidentified bird also interrupts proceedings but it is fairly quiet, so doesn't detract from the main calls. (I hope) The original recording was made on a Sony MiniDisc Recorder, using a Sony stereo microphone. The location was in the Cataract River gorge at Douglas Park, N.S.W., Australia, to the south-west of the urban area of Sydney.