Фотосет обворожительной Rosella Colour

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Фотосет обворожительной Rosella Colour
From Wikipedia, the free encyclopedia
This article is about the genus. For other uses, see Rosella (disambiguation) .

^ "rosella". The Chambers Dictionary (9th ed.). Chambers. 2003. ISBN 0-550-10105-5 .

^ Jump up to: a b πλατύκερκος , πλατύς , κέρκος . Liddell, Henry George ; Scott, Robert ; A Greek–English Lexicon at the Perseus Project .

^ Jump up to: a b Vigors, Nicholas Aylward (1825). "Descriptions of some rare, interesting, or hitherto uncharacterized subjects of Zoology" . Zoological Journal . 1 : 526–542 [527].

^ Jump up to: a b Gray, Jeannie; Fraser, Ian (2013). Australian Bird Names: A Complete Guide . Collingwood, Victoria: CSIRO Publishing. p. 150. ISBN 978-0-643-10471-6 .

^ Jump up to: a b c d e Lendon 1973 , p. 169

^ Stepnell, Kenneth; Boles, Walter (1983). Australia's beautiful birds and their young . Australian Consolidated Press. p. 88. ISBN 0-949892-13-0 .

^ Jump up to: a b Ovenden JR, Mackinlay AG, Crozie RH (1987). "Systematics and Mitochondrial Genome Evolution of Australian rosellas (Aves: Platycercidae)" . Molecular Biology and Evolution . 4 (5): 526–543. doi : 10.1093/oxfordjournals.molbev.a040462 .

^ "Zoological Nomenclature Resource: Psittaciformes (Version 9.024)" . www.zoonomen.net. 2009-05-30.

^ Shipham A, Schmidt DJ, Joseph L, Hughes JM (2017). "A genomic approach reinforces a hypothesis of mitochondrial capture in eastern Australian rosellas". The Auk . 134 (1): 181–92. doi : 10.1642/AUK-16-31.1 . hdl : 10072/338495 . S2CID 89599006 .

^ Shipham A, Schmidt D, Joseph L, Hughes J (2015). "Phylogenetic analysis of the Australian rosella parrots ( Platycercus ) reveals discordance among molecules and plumage". Molecular Phylogenetics and Evolution . 91 : 150–159. doi : 10.1016/j.ympev.2015.05.012 . PMID 26021439 .

^ Jump up to: a b Forshaw 2006 , plate 56

^ Jump up to: a b c d Forshaw 2006 , plate 53

^ Wright D, Clout M (2001): The eastern rosella (Platycercus eximius) in New Zealand. DOC Science Internal Series 18 . Department of Conservation, Wellington. 27 p (out of print) PDF fulltext

^ Jump up to: a b c Lendon 1973 , p. 170

^ Alderton, David (2003). The Ultimate Encyclopedia of Caged and Aviary Birds . London, England: Hermes House. p. 185. ISBN 1-84309-164-X . OCLC 650095388 .


Wikimedia Commons has media related to Platycercus .
Rosellas / r oʊ ˈ z ɛ l ə z / [1] are in a genus that consists of six species and nineteen subspecies.
These colourful parrots from Australia are in the genus Platycercus .
Platycercus means "broad-tailed" or "flat-tailed", [2] reflecting a feature common to the rosellas and other members of the broad-tailed parrot tribe. Their diet is mainly seeds and fruit.

The genus was described by naturalist Nicholas Aylward Vigors in 1825; the name Platycercus derived from the Greek platykerkos meaning "broad-" or "flat-tailed", from platys "broad, wide, level, flat" and kerkos "tail of a beast". [2] [3] [4] The relationships with other parrots have been unclear, with the Australian ringneck (genus Barnardius ) cited as a closest relative by some, and the genus Psephotus by others; the plumage of the western rosella seen as a link to the latter genus. [5]

Early European settlers encountered the eastern rosella at Rose Hill, New South Wales , now Parramatta , and so they called it the Rosehill parakeet which became "Rosehiller", and eventually "rosella". [6] Vigors defined the genus Platycercus in 1825, based on
the distinctive architecture of the feathers in the tail and wing, and designated the crimson rosella Platycercus elegans (as Platycercus pennantii ) as the type species . [3] The description as a flat or broad tail follows Heinrich Kuhl , who separated his psittacine specimens to a group with tails that were "narrow and cuneated", that is, a tapering wedged outline. [4]

There are, broadly speaking, three groups of rosella species. They are the blue-cheeked species which includes elegans and caledonicus , the white-cheeked species, eximius , adscitus and venustus and the yellow-cheeked species, icterotis . The observed difference in plumage has been reinforced by molecular studies in 1987 and 2015 that place the icterotis as a basal offshoot. [7]

There are six species and many subspecies: [8] Ovenden and colleagues analysed mitochondrial DNA, confirming the blue-cheeked and white-cheeked lineages. They found P. caledonicus to be basal to the other blue-cheeked forms, with P. elegans nigrescens being divergent from other subspecies of P. elegans . Also, P. venustus was basal to P. eximius and P. adscitus . [7] However, a mitochondrial study published in 2017 found that P. eximius was the earlier offshoot of the lineage that split into P. adscitus and P. venustus , and that nonsister taxa were hence able to hybridise. [9] In 2015, Ashlee Shipham and colleagues published a molecular study based on nuclear DNA finding that P. venustus and P. adscitus were sister species, and that P. elegans nigrescens diverged earlier than P. caledonicus . [10]

Ranging in size from 26–37 cm (10– 14 + 1 ⁄ 2 in), rosellas are medium-sized parrots with long tails. [12] The feathers on their backs show an obvious scalloping appearance with colouring that differs between the species. [12] All species have distinctive cheek patches. [12] Sexual dimorphism is absent or slight – males and females generally have similar plumage, apart from the western rosella . [5] The juveniles of the blue-cheeked species, and western rosella, all have a distinctive green-based plumage, while immature plumage of the white-cheeked species is merely a duller version of the adults. [5]

Rosellas are native to Australia and nearby islands, where they inhabit forests, woodlands, farmlands, and suburban parks and gardens. They are confined to the coastal mountains and plains and are absent from the outback . Introduced populations have also established themselves in New Zealand (notably in the North Island and in north Dunedin ) and on Norfolk Island .

Rosellas feed predominantly on seeds and fruit, with food held in the foot. They enjoy bathing in puddles of water in the wild and in captivity. [14] Rosellas scratch their heads with the foot behind the wing. [14]

Mutual preening is not exhibited by the genus, and the courtship display is simple; the male waves his tail sideways, and engages in some head bobbing, and the female reciprocates. [5]

Like most parrots, they are cavity nesters, generally nesting high in older large trees in forested areas. They generally have a clutch size of several eggs which are incubated for around 21 days by the female alone. The male feeds the female through this time and for some time after incubation concludes. Quickly covered in a white down, chicks take around five weeks to fledge . [5]

The more colourful rosella species are popular as pet parrots and also as aviary birds. They can live for longer than 20 years, and they are relatively easy to breed. [15] All have a reputation for being aggressive in captivity, and are hence recommended be kept separate from other caged birds. Their diet in aviculture includes seeds, fruit such as apple, pear, and grapes, and vegetable matter such as lettuce, grass, and silver beet. [14]

Adult crimson rosella ( P. elegans )

Western rosella ( Platycercus icterotis )

26 cm (10 in) long, the smallest rosella. The male is mainly red with yellow cheek patches, green rump, and a dark green tail. The female is duller, with a mainly green head, reddish forehead, yellow cheeks, and variegated green-red underparts. Colours of scalloped back feathers differ between two subspecies. The bill is whitish and the irises are dark brown. [11]

Crimson rosella ( Platycercus elegans )

36 cm long, seven subspecies, three of which are actually crimson. The red is replaced by yellow in the case of var. flaveolus and a mixture of red, orange and yellow in the Adelaide rosella.

Green rosella ( Platycercus caledonicus )

37 cm (15 in) long, the largest rosella. It has a yellow head and underparts with blue cheeks and a red frontal band above the bill. The feathers on the back and inner wings are black with narrow green margins at their tips, and the outer wing feathers are blue and green. Rump olive and the tail green. Irises are dark brown and the bill is light grey. [12]

Pale-headed rosella ( Platycercus adscitus )

30 cm long, mostly covered in blue except for the upper breast and head which are cream-yellow, the tail is blue-black and green, and an area around the vent is red. Two subspecies.

Eastern rosella ( Platycercus eximius )

30 cm (12 in) long. Red head and white cheeks. The upper breast is red and the lower breast is yellow fading to pale green over the abdomen. The feathers of the back and shoulders are black, and have yellowish or greenish margins giving rise to a scalloped appearance that varies slightly between three subspecies and the sexes. The wings and lateral tail feathers are bluish while the tail is dark green. [11]

Australia and Tasmania. Introduced to New Zealand where feral populations are found in most of North Island and the hills around Dunedin in the South Island [13]

Northern rosella ( Platycercus venustus )

28 cm long, forehead, crown and nape are black in colour with white-on-blue cheek-patches. The back and wing feathers are blackish with yellow borders, while the feathers of the belly, chest and rump are pale yellow with black borders giving rise to a scalloped appearance, tail is bluish green. The bill is pale grey.

The northern rosella is found from the Gulf of Carpentaria, through Arnhem Land to the Kimberleys in open savannah country, Australia.


Eastern rosellas are a beautiful type of parrot that is native to eastern Australia. They are relatively easy to breed and make great pets. If you’re thinking about breeding eastern rosellas, there are a few things you need to know first.
In this article, we’ll discuss what birds you need, how to set up their enclosure, and what to feed them. We also will touch on the nest boxes you need, nesting material, food for the adults, as well as the right type of nesting material.
This guide will provide you with all the tips and tricks you need to know about breeding eastern rosellas so that you can get started on your own breeding project today!
Eastern rosellas are relatively easy to care for, but there are a few things you need to know before you get started.
They are active birds and need plenty of space to move around.
You have a few options here: You can either keep them in a cage or aviary, or you can allow them to free-range. If you choose to keep them in a cage, make sure it is large enough for them to move around comfortably.
They also need a perch and some toys to keep them entertained. If you opt for an aviary, make sure it is well-ventilated and has plenty of space for them to fly around. You should also provide perches and toys for them to play with.
Whichever option you choose, just make sure your birds have enough space to move around and that they are safe from predators.
A good diet for your Eastern rosella should consist of a variety of fruits and vegetables, as well as some pellets or seed mix. Fruits and vegetables can be fresh, frozen, or canned (without added sugar).
Some good fruits for your rosella include apples, bananas, pears, grapes, and melons .
Or choose from some vegetables like dark leafy greens, carrots, sweet potatoes, and squash .
You should also offer your rosella a few pellets or a seed mix that is specifically designed for parrots. These mixes usually contain a variety of seeds, grains, nuts, and dried fruits.
One of the biggest challenges is their noise level. Rosellas are very vocal birds and their loud squawking can be a nuisance to neighbors.
So they may not be suitable for apartments or other close living quarters.
If you are looking to breed your rosellas, you will need to consider the color of your birds. The most common colors are green and yellow, but there are also many other colors and mutations . You will want to choose a pair that is of the same color so that you can get the best results.
One of the most important aspects you need to consider when choosing a pair of Eastern rosellas is their size. The male and female should be roughly the same size, as this will help ensure that they are able to mate successfully.
If one bird is significantly larger than the other, it is likely that they will not be able to mate properly, and this can lead to health problems for both birds.
When choosing a pair of Eastern rosellas to breed, it is important to consider the age of the birds. Younger birds are more likely to be successful in breeding than older birds.
Birds that are two years old or younger are typically the best choice for breeding. Birds that are three years old can also be successful, but their chances are not as high as younger birds. Birds that are four years old or older typically have a very low success rate when breeding.
Therefore, it is best to choose a pair of rosellas that are two years old or younger for the best chance of success.
As with most animals, there are some subtle physical differences between the male and females of the species. However, with birds, these differences can be quite hard to spot unless you know what you are looking for.
The easiest way to tell the difference between a male and female Eastern Rosella is by looking at the cere, which is the fleshy area above the beak. The male has a bluish-purple cere, while the female has a brownish-pink cere.
Another way to tell the difference is by looking at the tail feathers. The male has longer and more pointed tail feathers than the female. Read More about Eastern Rosella gender difference here .
The size of the box is important, as is the type of material it’s made from. You’ll also want to make sure the box has good ventilation and is easy to clean. Follow the steps below to find the perfect nesting box for your Eastern Rosellas!
To find the best nesting box for your Eastern Rosellas, you need to know the right dimensions.
Most common for Eastern Rosellas are nesting boxes that are around 10 inches (260mm) deep, 8-10 inches (200-230mm) wide, and around 19 inches (470mm) in height.
Look for one that is made of sturdy materials and has a smooth interior. The box should also be large enough for your birds to move around comfortably and should provide climbing grooves on the front side all the way from the entrance hole down to the ground.
The best nesting boxes for Eastern Rosellas are made of sturdy materials that will not rot or disintegrate easily. The box should also be weatherproof so that it can withstand the elements.
The nesting box should also be large enough for the bird to move around comfortably. The entrance hole should be just large enough for the bird to enter and exit easily.
You can find nesting boxes made of different materials, such as wood, metal, or plastic. But best, of course, are boxes made of durable wood.
The hole size is important for two reasons. The first reason is that the hole needs to be big enough for your bird to comfortably enter and exit the box. If the hole is too small, your bird may have difficulty getting in and out, which can lead to frustration and potential injury.
The second reason is that the hole size will determine how much heat is retained inside the nest. A smaller hole will keep more heat in, which can be beneficial in cooler weather. Conversely, a larger hole will allow more heat to escape, which can be beneficial in warmer weather.
So depending on the size of your birds, the entrance hole should be 2.5-3 inches in diameter.
The location of the nesting box is important for two reasons. First, you want to make sure the box is in a location that is safe from predators.
Second, you want to make sure the box is in a location that is convenient for you to check on the eggs and chicks. If the nesting box is too high up, it may be difficult for you to check on them regularly. And of course, if the nesting box is too low to the ground, it may be easier for predators to get to the eggs and chicks. Although in a closed cage or aviary that may not really be a thread.
Nesting material is important for Eastern Rosellas, as they will use it to line their nest. Eastern rosellas will use a variety of materials, but the most important thing is that it is soft and absorbent. Some good options include shredded paper, cotton wool, or even toilet paper.
A great guide to the ideal nest box for Eastern Rosella you can find here: https://nestboxtales.com/nest-box-designs/eastern-rosella/
Eastern Rosella breading season in wild is spring, but in captivity they can be bred year around.
One of the challenges of breeding Rosellas is that they are very sensitive to incorrect incubation and hand-rearing techniques. If they are not incubated and reared correctly, they can develop a number of health problems.
Some of these problems include respiratory infections, malnutrition, and deformities. Because of this, it is important to make sure that you are using the correct techniques when you are breeding Rosellas.
The challenges of breeding Rosellas are many and varied. They include finding a compatible mate, providing adequate housing and nesting materials, preventing inbreeding, dealing with health issues, and so forth.
However, the rewards of successfully breeding these beautiful birds are great, and the challenges can be overcome with careful planning and dedication. With a little knowledge and effort, anyone can be a successful Rosella breeder!
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