Psittacula derbiana (Information about this image)
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
Cladus: 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: Avebrevicauda
Cladus: Pygostylia
Cladus: Ornithothoraces
Cladus: Ornithuromorpha
Cladus: Carinatae
Parvclassis: Neornithes
Cohors: Neognathae
Cladus: Neoaves
Cladus: Telluraves
Cladus: Australaves
Ordo: Psittaciformes
Familia: Psittaculidae
Genus: Psittacula
Species: Psittacula derbiana
Name
Psittacula derbiana (Fraser, 1852)
Synonymy
Palæornis derbianus (protonym)
References
Proceedings of the Zoological Society of London part XVIII: 245, pl.XXV.
Vernacular names
català: Cotorra de Derby
čeština: Alexandr čínský
Cymraeg: Paracît Arglwydd Derby
Deutsch: Chinasittich
English: Lord Derby's Parakeet
español: Cotorra de Derby
suomi: Tiibetinkaija
français: Perruche de Derby
magyar: Fenyőpapagáj
italiano: Parrocchetto di Derby
кырык мары: Китай шӓргӓшӓн попугай
Nederlands: Lord Derby's parkiet
polski: Aleksandretta chińska
پنجابی: کالی گانی والا طوطا
русский: Китайский кольчатый попугай
svenska: Derbyparakit
中文: 大紫胸鹦鹉/绯胸鹦鹉
Lord Derby's parakeet (Psittacula derbiana), also known as Derbyan parakeet, is a parrot species,[3] which is confined to a small pocket of moist evergreen forest in the hills and mountains of the Indian states of Arunachal Pradesh and Assam, and adjoining parts of Tibet, Sichuan and Yunnan in China.[1] The species suffers from cutting of old trees (important for nesting sites) and poaching for the illegal wildlife trade.[1] In 2011, its status was updated from least concern to near threatened on the IUCN Red List.[1] The adult male and female are easily distinguished because they have different beak colours and slightly different plumage.[1]
The name of this bird commemorates Edward Stanley, 13th Earl of Derby.[citation needed]
Lord Derby's parakeets feed on fruits, berries, seeds, and leaf buds, occasionally foraging in gardens and fields.
Description
A pair at Wilhelma Zoo, Germany
Lord Derby's parakeets are 45–50 cm (18–20 in) in length and are sexually dimorphic.[1] They have a mostly green plumage over their dorsal surface (i.e. from behind), black lores and lower cheeks, a bluish-purple crown and pale yellow eyes. The throat, breast, abdomen and under-wing coverts are greyish blue to lavender. The thighs and vent area are yellowish green with blue edging on some of the feathers. The tail feathers are shades of green, some edged with blue. Male birds have a red upper mandible with a yellow tip, while the lower mandible is black. The females have an all-black beak.
Immature Lord Derby's parakeets are duller in colour than the adults. Juvenile birds have green crowns, orange-red upper and lower mandible (beak), and their irises are dark and do not lighten until they reach maturity between two and three years of age.
Sexual dimorphism
Adult male
The adult male has a red upper mandible
The adult male has a red upper mandible
Male
Male
Male pet kept in China
Male pet kept in China
Adult female
A female pet in Tibet. The adult female has an all black beak.
A female pet in Tibet. The adult female has an all black beak.
A female pet in China
A female pet in China
A captive female in China
A captive female in China
Reproduction
Juvenile playing with a bolt on a cage in Tibet. Juveniles have dark irises and both the upper and lower mandible are orange-red.
Psittacula derbiana - MHNT
Breeding season usually begins between April and June. The female lays a clutch of two to four eggs (36.1 mm × 27.7 mm [1.42 in × 1.09 in]) in nest holes of trees. The young hatch after an incubation period of about 23 days and will fledge after 8 to 9 weeks.
Divergence
It was discovered that the divergence of Psittacula from other parrots occurred between 3.4 and 9.7 million years ago and divergence in Psittacula occurred between 2.5 and 7.7 million years ago. However, the divergence of derbyan parakeet occurred most recently between 0.2 and 0.5 million years ago.[4]
References
BirdLife International (2016). "Psittacula derbiana". IUCN Red List of Threatened Species. 2016: e.T22685500A93076177. doi:10.2305/IUCN.UK.2016-3.RLTS.T22685500A93076177.en. Retrieved 13 November 2021.
In Proceedings of the Zoological Society of London, 1850, p. 245 and plate Aves XXV, published on 24 Jan 1852 (see Philip Sclater, List of the Dates of Delivery of the Sheets of the 'Proceedings' of the Zoological Society of London, from the commencement in 1830 to 1859 inclusive in Proceedings of the Zoological Society of London, 1893, p. 239).
"Zoological Nomenclature Resource: Psittaciformes (Version 9.022)". zoonomen.net. 31 March 2009.
Groombridge, Jim J; Jones, Carl G; Nichols, Richard A; Carlton, Mark; Bruford, Michael W (1 April 2004). "Molecular phylogeny and morphological change in the Psittacula parakeets". Molecular Phylogenetics and Evolution. 31 (1): 96–108. doi:10.1016/j.ympev.2003.07.008. ISSN 1055-7903.
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