Oriental reed warbler: Difference between revisions
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The '''Oriental Reed Warbler''' (''Acrocephalus orientalis'') is a [[passerine]] [[bird]] of eastern [[Asia]] belonging to the reed warbler genus ''[[Acrocephalus]]''. It was formerly classified as a [[subspecies]] of the [[Great Reed Warbler]] (''A. arundinaceus'') of western [[Eurasia]]. |
The '''Oriental Reed Warbler''' (''Acrocephalus orientalis'') is a [[passerine]] [[bird]] of eastern [[Asia]] belonging to the reed warbler genus ''[[Acrocephalus]]''. It was formerly classified as a [[subspecies]] of the [[Great Reed Warbler]] (''A. arundinaceus'') of western [[Eurasia]]. |
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==Description== |
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It is a large warbler, 18–20 cm long with a wingspan of 23–26 cm. The [[plumage]] is brown above with a paler rump and whitish tips to the tail feathers. The underparts are whitish below, browner on the flanks and undertail-coverts. There are narrow greyish streaks on the throat and breast. It has a dark eyestripe and a whitish stripe above the eye. The fairly long, heavy [[beak|bill]] is brownish above and pink below with a bright orange [[gape]]. The feet are grey. |
It is a large warbler, 18–20 cm long with a wingspan of 23–26 cm. The [[plumage]] is brown above with a paler rump and whitish tips to the tail feathers. The underparts are whitish below, browner on the flanks and undertail-coverts. There are narrow greyish streaks on the throat and breast. It has a dark eyestripe and a whitish stripe above the eye. The fairly long, heavy [[beak|bill]] is brownish above and pink below with a bright orange [[gape]]. The feet are grey. |
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The [[bird song|song]] is a mixture of warbling phrases and guttural, croaking notes. It is given from a prominent perch such as the top of a reed stem or bush. The bird also has a loud, harsh ''chack'' call. |
The [[bird song|song]] is a mixture of warbling phrases and guttural, croaking notes. It is given from a prominent perch such as the top of a reed stem or bush. The bird also has a loud, harsh ''chack'' call. |
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==Distribution and habitat== |
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The breeding range covers southern [[Siberia]], [[Mongolia]], northern, central and eastern [[China]], [[Korea]] and [[Japan]]. It winters in north-east [[India]] and across [[South-east Asia]] to the [[Philippines]] and [[Indonesia]], occasionally reaching [[New Guinea]] and [[Australia]]. It has occurred as a [[vagrancy in birds|vagrant]] in [[Israel]] and [[Kuwait]]. It breeds mainly in [[reedbed]]s and can also be found in marshes, [[paddy field]]s, grassland and scrub where it forages for [[insect]]s and other [[invertebrate]]s. |
The breeding range covers southern [[Siberia]], [[Mongolia]], northern, central and eastern [[China]], [[Korea]] and [[Japan]]. It winters in north-east [[India]] and across [[South-east Asia]] to the [[Philippines]] and [[Indonesia]], occasionally reaching [[New Guinea]] and [[Australia]]. It has occurred as a [[vagrancy in birds|vagrant]] in [[Israel]] and [[Kuwait]]. It breeds mainly in [[reedbed]]s and can also be found in marshes, [[paddy field]]s, grassland and scrub where it forages for [[insect]]s and other [[invertebrate]]s. |
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==Reproduction== |
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Oriental Reed Warblers have small breeding territories and can achieve high population densities. The [[nest]] is built 1-1.5 metres above the ground among reed stems. Two to six [[egg (biology)|eggs]] are laid and are [[avian incubation|incubated]] for 12 to 14 days. The young birds [[fledge]] after 10 to 15 days. Major [[predator]]s at the nest include the [[Siberian Weasel]] and [[snake]]s of the genus ''[[Elaphe]]''. |
Oriental Reed Warblers have small breeding territories and can achieve high population densities. The [[nest]] is built 1-1.5 metres above the ground among reed stems. Two to six [[egg (biology)|eggs]] are laid and are [[avian incubation|incubated]] for 12 to 14 days. The young birds [[fledge]] after 10 to 15 days. Major [[predator]]s at the nest include the [[Siberian Weasel]] and [[snake]]s of the genus ''[[Elaphe]]''. |
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==References==<!-- Forktail13:109. Micronesica32:257. --> |
==References==<!-- Forktail13:109. Micronesica32:257. --> |
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*Dyrcz, Andrzej & Nagata, Hisashi (2002) "[http://docstore.ingenta.com/cgi-bin/ds_deliver/1/u/d/ISIS/38797275.1/bto/bird/2002/00000049/00000002/492166/C86E4AF327116CCA1185806340FA845E130F80DF73.pdf?link=http://www.ingentaconnect.com/error/delivery&format=pdf Breeding ecology of the Eastern Great Reed warbler ''Acrocephalus arundinaceus orientalis'' at Lake Kasumigaura, central Japan]", ''Bird Study '''49''': 166-171. |
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*MacKinnon, John & Phillipps, Karen (2000) ''A Field Guide to the Birds of China'', Oxford University Press, Oxford. |
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*Robson, Craig (2002) ''A Field Guide to the Birds of South-East Asia''. New Holland, London. |
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*Snow, D. W. & Perrins, C. M. (1998) ''Birds of the Western Palearctic: Concise Edition'', Vol. 2, Oxford University Press, Oxford. |
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==Gallery== |
==Gallery== |
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Revision as of 20:46, 3 July 2012
| Oriental Reed Warbler | |
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| In Kolkata, West Bengal, India. | |
| Scientific classification | |
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| Species: | A. orientalis
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| Binomial name | |
| Acrocephalus orientalis | |
The Oriental Reed Warbler (Acrocephalus orientalis) is a passerine bird of eastern Asia belonging to the reed warbler genus Acrocephalus. It was formerly classified as a subspecies of the Great Reed Warbler (A. arundinaceus) of western Eurasia.
Description
It is a large warbler, 18–20 cm long with a wingspan of 23–26 cm. The plumage is brown above with a paler rump and whitish tips to the tail feathers. The underparts are whitish below, browner on the flanks and undertail-coverts. There are narrow greyish streaks on the throat and breast. It has a dark eyestripe and a whitish stripe above the eye. The fairly long, heavy bill is brownish above and pink below with a bright orange gape. The feet are grey.
It is slightly smaller, slenderer and shorter-winged than the Great Reed-warbler. Its tail is shorter and more square-ended than that of the Clamorous Reed Warbler (A. stentoreus) and it has a slightly longer primary projection and a slightly shorter and thicker bill. The pale tip to the tail separates it from both species.
The song is a mixture of warbling phrases and guttural, croaking notes. It is given from a prominent perch such as the top of a reed stem or bush. The bird also has a loud, harsh chack call.
Distribution and habitat
The breeding range covers southern Siberia, Mongolia, northern, central and eastern China, Korea and Japan. It winters in north-east India and across South-east Asia to the Philippines and Indonesia, occasionally reaching New Guinea and Australia. It has occurred as a vagrant in Israel and Kuwait. It breeds mainly in reedbeds and can also be found in marshes, paddy fields, grassland and scrub where it forages for insects and other invertebrates.
Reproduction
Oriental Reed Warblers have small breeding territories and can achieve high population densities. The nest is built 1-1.5 metres above the ground among reed stems. Two to six eggs are laid and are incubated for 12 to 14 days. The young birds fledge after 10 to 15 days. Major predators at the nest include the Siberian Weasel and snakes of the genus Elaphe.
References
- Dyrcz, Andrzej & Nagata, Hisashi (2002) "Breeding ecology of the Eastern Great Reed warbler Acrocephalus arundinaceus orientalis at Lake Kasumigaura, central Japan", Bird Study 49: 166-171.
- MacKinnon, John & Phillipps, Karen (2000) A Field Guide to the Birds of China, Oxford University Press, Oxford.
- Robson, Craig (2002) A Field Guide to the Birds of South-East Asia. New Holland, London.
- Snow, D. W. & Perrins, C. M. (1998) Birds of the Western Palearctic: Concise Edition, Vol. 2, Oxford University Press, Oxford.
Gallery
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Mai Po, Hong Kong
_in_Kolkata_W_IMG_3235.jpg)
External links
