Anas castanea (*)
Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Classis: Reptilia
Cladus: Eureptilia
Cladus: Romeriida
Subclassis: Diapsida
Cladus: Sauria
Infraclassis: Archosauromorpha
Cladus: Crurotarsi
Divisio: Archosauria
Cladus: Avemetatarsalia
Cladus: Ornithodira
Subtaxon: Dinosauromorpha
Cladus: Dinosauriformes
Cladus: Dracohors
Cladus: Dinosauria
Ordo: Saurischia
Cladus: Eusaurischia
Subordo: Theropoda
Cladus: Neotheropoda
Cladus: Averostra
Cladus: Tetanurae
Cladus: Avetheropoda
Cladus: Coelurosauria
Cladus: Tyrannoraptora
Cladus: Maniraptoromorpha
Cladus: Maniraptoriformes
Cladus: Maniraptora
Cladus: Pennaraptora
Cladus: Paraves
Cladus: Eumaniraptora
Cladus: Avialae
Infraclassis: Aves
Cladus: Euavialae
Cladus: Avebrevicauda
Cladus: Pygostylia
Cladus: Ornithothoraces
Cladus: Ornithuromorpha
Cladus: Carinatae
Parvclassis: Neornithes
Cohors: Neognathae
Cladus: Pangalloanserae
Cladus: Galloanseres
Ordo: Anseriformes
Familia: Anatidae
Genus: Anas
Species: Anas castanea
Name
Anas castanea (Eyton, 1838)
Original combination: Mareca castanea
References
A Monograph on the Anatidae, or duck tribe: 119
Vernacular names
čeština: Čírka kaštanová
dansk: Kastanjeand
Deutsch: Kastanienente
English: Chestnut Teal
français: Sarcelle rousse
magyar: Gesztenyebarna réce
日本語: アオクビコガモ
Nederlands: Kastanjetaling
norsk: Kastanjeand
русский: Каштановый чирок
svenska: Kastanjekricka
The chestnut teal (Anas castanea) is a dabbling duck found in Australia. It is protected under the National Parks and Wildlife Act 1974.[clarification needed]
Taxonomy
The chestnut teal was described by the English naturalist Thomas Campbell Eyton in 1838 under the binomial name Mareca castanea.[2] The specific epithet castanea is from the Latin castaneus for "chestnut-coloured" or "chestnut-brown".[3]
A large molecular phylogentic study that compared mitochondrial DNA sequences from ducks, geese and swans in the family Anatidae found that the chestnut teal is a sister species to the Sunda teal (Anas gibberifrons) that is endemic to Indonesia.[4]
Description
The chestnut teal is darker and a slightly bigger bird than the grey teal.[5]
The male has a distinctive green coloured head and mottled brown body. The female has a brown head and mottled brown body. The female is almost identical in appearance to the grey teal.
The female chestnut teal has a loud penetrating "laughing" quack repeated rapidly nine times or more.[5]
Distribution and habitat
Female and 6 ducklings, including 2 albinos (Tasmania)
The chestnut teal is commonly distributed in south-eastern and south-western Australia, while vagrants may occur elsewhere. Tasmania and southern Victoria are the species’ stronghold,[5] while vagrants have been found as far north as New Guinea and Lord Howe Island, and as far south as New Zealand.[6]
The chestnut teal prefers coastal estuaries and wetlands, and is indifferent to salinity. This bird is an omnivore.
Breeding
Chestnut teals form monogamous pairs that stay together outside the breeding season, defend the nest site and look after the young when hatched. Nests are usually located over water, in a down-lined tree hollow about 6–10 m high. Sometimes nests are placed on the ground, among clumps of grass near water. The young hatch and are ready to swim and walk within a day.[6]
See also
Dalvirus anatis
References
BirdLife International (2016). "Anas castanea". IUCN Red List of Threatened Species. 2016: e.T22680277A92853345. doi:10.2305/IUCN.UK.2016-3.RLTS.T22680277A92853345.en. Retrieved 12 November 2021.
Eyton, Thomas Campbell. A Monograph on the Anatidae, or Duck Tribe. London: Longman, Orme, Brown, Green, & Longman. p. 119.
Jobling, James A. (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. p. 93. ISBN 978-1-4081-2501-4.
Gonzalez, J.; Düttmann, H.; Wink, M. (2009). "Phylogenetic relationships based on two mitochondrial genes and hybridization patterns in Anatidae". Journal of Zoology. 279 (3): 310–318. doi:10.1111/j.1469-7998.2009.00622.x.
"Chestnut Teal". Victoria State Government: Game Management Authority. Archived from the original on 10 August 2017. Retrieved 9 August 2017.
"Chestnut Teal". Birds in Backyards. Archived from the original on 8 September 2012. Retrieved 27 January 2012.
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