Both sexes are brightly coloured with black, green, yellow, red and other colours. The females tend to be less brightly coloured. One major difference between the sexes is that the male's chest is purple, while the female's is a lighter mauve colour.
Tuesday, October 20, 2009
The Gouldian Finch
Both sexes are brightly coloured with black, green, yellow, red and other colours. The females tend to be less brightly coloured. One major difference between the sexes is that the male's chest is purple, while the female's is a lighter mauve colour.
Tuesday, May 5, 2009
Rose-ringed Parakeet
The Rose-ringed Parakeet (Psittacula krameri), also known as the Ringnecked Parakeet, is a gregarious tropical parakeet species that is popular as a pet. Its scientific name commemorates the Austrian naturalist Wilhelm Heinrich Kramer.
This non-migrating species is one of few parrot species that have successfully adapted to living in 'disturbed habitats', and in that way withstood the onslaught of urbanisation and deforestation. In the wild, this is a noisy species with an unmistakable squawking call.
As is the case with all Psittacula (Afro-Asian Ringnecked Parakeet) species, the Rose-ringed Parakeet is sexually dimorphic. The adult male sports a black neck-ring and pink nape-band while the hen and immature birds of both sexes either show no neck rings, or display shadow-like pale to dark grey neck-rings and light (lighter coloured than surroundings) nape-bands.
Eastern Rosella
Description
Rose-Breasted Cockatoo - Galah- Eolophus roseicapilla
Description
Galahs are about 35 cm (14 in) long. They have a pale grey to mid-grey back, a pink face and chest, and a light pink crest. The sexes appear similar, however generally adult birds differ in eye colour; the male has a very dark brown (almost black) iris, and the female has a mid-brown/red iris. Typical birds are about 350 mm long and weigh between 300 and 400 grams.
Distribution and habitat
Galahs are found in all Australian states, and are absent only from the driest areas and the far north of Cape York Peninsula. They appear to have been self-introduced to Tasmania. They are common in some metropolitan areas, for example Perth and Melbourne, and common to abundant in open habitats which offer at least some scattered trees for shelter. The changes wrought by European settlement, a disaster for many species, have been highly beneficial for the galah because of the clearing of forests in fertile areas and the provision of stock watering points in arid zones.
Rainbow Lorikeet- trichoglossus haematodus
Rainbow Lorikeets have been introduced to Perth, Western Australia,[2] Auckland, New Zealand[3] and Hong Kong.[4]
Description
The Rainbow Lorikeet is very colourful. Almost every colour of the rainbow is found on the feathers of the rainbow lorikeet. They are not large birds, with a Rainbow Lorikeets length ranging from 25-30 cm (9.8-11.8 in) in size, and with a wingspan of about 17 cm (6.7 in). They vary significantly in colouration between the numerous subspecies. Their markings of the best known subspecies T. h. moluccanus are particularly striking: A dark blue or violet-blue head and stomach, a bright green back, tail and vent, and an orange breast and beak. Several subspecies have darker scalloped markings across the orange or red breast and the Weber's Lorikeet (T. h. weberi) is predominantly green.
Rainbow Lorikeet feather — photo shows both sides of the same feather
Rainbow Lorikeets travel together as pairs mostly and often pick up calls to fly as a flock, then dispersing again into pairs. Rainbow Lorikeet pairs defend their feeding and nesting areas aggressively against other Rainbow Lorikeets, and other bird species. They chase off not only smaller birds such as the Noisy Miner, but also larger and more powerful birds such as the Australian Magpie.
Although individual Rainbow Lorikeets are difficult to distinguish by their plumage they are possible to distinguish by their behaviour, size and eye colour differences at the very outside of the iris.
Victoria Crowned Pigeon
The Victoria Crowned Pigeon, Goura victoria, is a large, approximately 74cm (29 in) long and weighing up to 2.5 kg (5.5 lb), bluish-grey pigeon with elegant blue lace-like crests, maroon breast and red iris. The bird may be easily recognized by the unique white tips on its crests. Both sexes are similar. One of three superficially similar species of crowned pigeons (the others being the Western Crowned Pigeon and the Southern Crowned Pigeon), the Victoria Crowned Pigeon is distributed in the lowland and swamp forests of northern New Guinea and surrounding islands. Its diet consists mainly of fruits, figs, seeds and invertebrates. The female usually lays a single white egg. The name commemorates the British monarch, Queen Victoria of the United Kingdom. There are two subspecies of the Victoria Crowned Pigeon, Goura victoria victoria, the nominate race is the smaller of the two supspecies and can be found in Yapen, Biak & Supiori. Goura victoria beccarii is found on the mainland of New Guinea Due to continuing habitat loss, being tame and easily hunted for its plumes and meat, the Victoria Crowned Pigeon is evaluated as Vulnerable on the IUCN Red List of Threatened Species. It is listed in Appendix II of CITES.
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