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・ Chestnut-collared swallow
・ Chestnut-collared swift
・ Chestnut-coloured woodpecker
・ Chestnut-crested antbird
・ Chestnut-crested cotinga
・ Chestnut-crested yuhina
・ Chestnut-crowned antpitta
Chestnut-crowned babbler
・ Chestnut-crowned becard
・ Chestnut-crowned bush warbler
・ Chestnut-crowned foliage-gleaner
・ Chestnut-crowned gnateater
・ Chestnut-crowned laughingthrush
・ Chestnut-crowned sparrow-weaver
・ Chestnut-crowned warbler
・ Chestnut-eared aracari
・ Chestnut-eared bunting
・ Chestnut-eared laughingthrush
・ Chestnut-faced babbler
・ Chestnut-flanked sparrowhawk
・ Chestnut-flanked white-eye
・ Chestnut-fronted helmetshrike


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Chestnut-crowned babbler : ウィキペディア英語版
Chestnut-crowned babbler


The chestnut-crowned babbler (''Pomatostomus ruficeps'') is a medium-sized bird that is endemic to arid and semi-arid areas of south-eastern Australia.〔Higgins, P. J. and Peter, J. M. (2002). Handbook of Australian, New Zealand and Antarctic Birds. Volume 6: Pardalotes to shrike-thrushes. Oxford University Press, Melbourne.〕 It is a member of the Pomatostomidae family, which comprises five species of Australo-Papuan babblers. All are boisterous and highly social, living in groups of up to 23 individuals that forage and breed communally. Other names include red-capped babbler, rufous-crowned babbler and chatterer.〔BirdLife Australia (2013). Chestnut-crowned Babbler. Birds in Backyards program. Available at: http://www.birdsinbackyards.net/species/Pomatostomus-ruficeps. Accessed 14 October 2013.〕
== Description ==

Chestnut-crowned babblers are dark, brown-grey birds with a white throat and breast, white-tipped tail and a long, black, down-curved bill. Wings are short and rounded and the tail is long with a rounded tip. Diagnostic features include two white wing bars and a rich, chestnut crown highlighted by long, white eyebrows.〔Simpson, K. and Day, N. (2004). Field Guide to the Birds of Australia (7th edition). Penguin Group, Australia.〕 The birds have dark brown eyes and grey legs, while the wings, back and flanks are brown-grey to mottled dusky on the mantle. The white of the throat and breast is well-defined and narrower than that of the similar, white-browed babbler (''Pomatostomus superciliosus'').〔Pizzey, G. and Knight, F. (2003). The Graham Pizzey and Frank Knight Field Guide to the Birds of Australia. Harper Colins Publishers Pty Ltd, Sydney.〕 Combined, these characteristics give the chestnut-crowned babbler a rather unsual appearance.〔
At 21–23 cm and approximately 50 g in weight,〔Browning, L. E., Young, C. M., Savage, J. L., Russell, D. J. F., Barclay, H., Griffith, S. C. and Russell, A. F. (2012). Carer provisioning rules in an obligate cooperative breeder: Prey type, size and delivery rate. Behavioural Ecology and Sociobiology 66: 1639-1649.〕 the chestnut-crowned babbler is noticeably smaller than the grey-crowned babbler (''Pomatostomus temporalis''). It also gives the appearance of being slimmer than other babbler species.〔 Adults are sexually monomorphic. Immature birds are like the adults but duller, with a pale rufous eyebrow and chest, brown crown and whitish patch behind the eye.〔Slater, P., Slater, P. and Slater, R. (1996). The Slater Field Guide to Australian Birds. Ken Fin. Rigby Publishers, Sydney.〕

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