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Amytornis Striatus
The striated grasswren (''Amytornis striatus'') is a small, cryptically coloured ground-dwelling species of wren-like bird in the family Maluridae, endemic to Australia. It occupies a large discontinuous range across arid and semi-arid areas of western, central and southern Australia where it is associated with spinifex ('' Triodia'') grass. Description The striated grasswren is one of 13 species in the genus ''Amytornis'', commonly known as the grasswrens, found only in arid and semi-arid areas of Australia. All are small cryptic birds with long, usually cocked-tails, characterised by diagnostic distinctive interscapular gap in the feathering,Higgins, P. J.; Peter, J. M.; Steele, W. K. 2001. Handbook of Australian, New Zealand and Antarctic Birds: Tyrant-flycatchers to Chats. Oxford University Press, Oxford. an enlarged auditory bulla (tympanic chambers) and ten rectrices. The striated grasswren is a slim, long-tailed grasswren with a slender pointed bill. The plumage is high ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Gould
John Gould (; 14 September 1804 – 3 February 1881) was an English ornithologist. He published a number of monographs on birds, illustrated by plates produced by his wife, Elizabeth Gould, and several other artists, including Edward Lear, Henry Constantine Richter, Joseph Wolf and William Matthew Hart. He has been considered the father of bird study in Australia and the Gould League in Australia is named after him. His identification of the birds now nicknamed "Darwin's finches" played a role in the inception of Darwin's theory of evolution by natural selection. Gould's work is referenced in Charles Darwin's book, ''On the Origin of Species''. Early life Gould was born in Lyme Regis, the first son of a gardener. Both father and son probably had little education. After working on Dowager Lady Poulett's glass house, his father obtained a position on an estate near Guildford, Surrey, and then in 1818, Gould Snr became foreman in the Royal Gardens of Windsor. Gould then be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Willie Wagtail
The willy (or willie) wagtail (''Rhipidura leucophrys'') is a passerine bird native to Australia, New Guinea, the Solomon Islands, the Bismarck Archipelago, and Eastern Indonesia. It is a common and familiar bird throughout much of its range, living in most habitats apart from thick forest. Measuring in length, the willie wagtail is contrastingly coloured with almost entirely black upperparts and white underparts; the male and female have similar plumage. Three subspecies are recognised; ''Rhipidura leucophrys leucophrys'' from central and southern Australia, the smaller ''R. l. picata'' from northern Australia, and the larger ''R. l. melaleuca'' from New Guinea and islands in its vicinity. It is unrelated to the true wagtails of the genus '' Motacilla''; it is a member of the fantail genus ''Rhipidura'' and is a part of a "core corvine" group that includes true crows and ravens, drongos and birds of paradise. Within this group, fantails are placed either in the family Dic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Birds Of Australia
This article is one of a series providing information about endemism among birds in the world's various zoogeographic zones. For an overview of this subject see Endemism in birds. Patterns of endemism Family-level endemism is prominent in Australia. The Australasian biogeographic region has the highest number of endemic families of any zoogeographic region except the Neotropics, and many of these families are endemic to Australia itself — the country therefore stakes a strong claim to be the world's greatest hotspot of bird endemism. Australian endemic and near-endemic families The Australian endemic families are: * Emu (Dromaiidae), a well-known monotypic family; the emu is found in rural areas throughout the continent * Plains-wanderer (Pedionomidae), a monotypic family; plains-wanderer is restricted to arid inland areas in the southeast of Australia * Lyrebirds (Menuridae), two forest-dwelling species of southeast Australia * Scrub-birds (Atrichornithidae), two fore ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emu Volume 9 Plate 21
The emu () (''Dromaius novaehollandiae'') is the second-tallest living bird after its ratite relative the ostrich. It is endemic to Australia where it is the largest native bird and the only extant member of the genus ''Dromaius''. The emu's range covers most of mainland Australia, but the Tasmanian, Kangaroo Island and King Island subspecies became extinct after the European settlement of Australia in 1788. Emus are soft-feathered, brown, flightless birds with long necks and legs, and can reach up to in height. Emus can travel great distances, and when necessary can sprint at ; they forage for a variety of plants and insects, but have been known to go for weeks without eating. They drink infrequently, but take in copious amounts of water when the opportunity arises. Breeding takes place in May and June, and fighting among females for a mate is common. Females can mate several times and lay several clutches of eggs in one season. The male does the incubation; during this p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Striated Grasswren Calling Scotia Station NSW Dan Eyles
{{disambiguation ...
Striations means a series of ridges, furrows or linear marks, and is used in several ways: * Glacial striation * Striation (fatigue), in material * Striation (geology), a ''striation'' as a result of a geological fault * Striation Valley, in Antarctica * In hyperbolic geometry, a ''striation'' is a reflection across two parallel mirrors. * In anatomy, striated muscle * Striations can be found in certain glasses. These have been caused by turbulent flow during teeming (pouring) of the glass. * Striations can be observed in clouds. See Barber's pole. * Ballistic fingerprinting Forensic firearm examination is the forensic process of examining the characteristics of firearms or bullets left behind at a crime scene. Specialists in this field try to link bullets to weapons and weapons to individuals. They can raise and re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fan-tailed Cuckoo
The fan-tailed cuckoo (''Cacomantis flabelliformis'') is a species of cuckoo in the family Cuculidae. It is found in Australia, Fiji, New Caledonia, New Zealand, New Guinea, Solomon Islands, and Vanuatu. Taxonomy Six subspecies have been recognised: * ''Cacomantis flabelliformis excitus'' (Rothschild & Hartert, 1907) – Mountains of New Guinea. * ''Cacomantis flabelliformis flabelliformis'' ( Latham, 1802) – Eastern Australia from Cape York through to southern South Australia; south-western Western Australia. * ''Cacomantis flabelliformis meeki'' (Rothschild & Hartert, 1902) – Solomon Islands including Santa Isabel, Kolombangara, Guadalcanal and Bellona. Originally designated ''Cacomantis meeki''. * ''Cacomantis flabelliformis pyrrhophanus'' (Vieillot, 1817) – New Caledonia including the Loyalty Islands. * ''Cacomantis flabelliformis schistaceigularis'' (Sharpe, 1900) – Vanuatu. * ''Cacomantis flabelliformis simus'' ( Peale, 1848) – Fiji. Description The fan-tailed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black-eared Cuckoo
The black-eared cuckoo (''Chrysococcyx osculans'') is a species of cuckoo in the family Cuculidae. Found across Australia, it migrates to eastern Indonesia and southern New Guinea. They are usually observed by themselves or in a pair as they don't raise their own young, rather they leave eggs in another species nest to be raised by host. Description Adult weight on average 30 grams and are 19 to 20 cm long,Simpson, K and Day, N. 1998. The Claremont Field guide to the Birds of Australia, Penguin with dull greyish-brown back with distinctive black eye-stripe from the bill to the neck. Rump is pale white and breasts area is pale salmon in colour.Pizzey and Knight 2007. The Field guide to the Birds of Australia, eight edition. HarperCollins Feet and legs are black, eyes are brown, bill is black tail is grey/brown on top, with white tips, while underneath the tail is cream with brownish bars. What distinguishes it from other small sized cuckoo species in Australia is that it d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Horsfield's Bronze Cuckoo
Horsfield's bronze cuckoo (''Chrysococcyx basalis'') is a small cuckoo in the family Cuculidae. Its size averages 22g and is distinguished by its green and bronze iridescent colouring on its back and incomplete brown barring from neck to tail. Horsfield's bronze cuckoo can be destiguished from other bronze cuckoos by its white eyebrow and brown eye stripe. The Horsfield's bronze cuckoo is common throughout Australia preferring the drier open woodlands away from forested areas. Taxonomy The Horsfield's bronze cuckoo is one of five Australian species in the genus ''Chrysococcyx'' (formerly ''Chalcites'') a type of parasitic bird, that parasitises fairy-wrens primarily to raise their young. Diet and behaviour The main diet of the Horsfield's bronze cuckoo is insects and they are nomadic, travelling to different regions of Australia to breed and find food. Small insects are taken from leaves, branches, caught on the wing and in breeding season, Horsfield's bronze cuckoos feed each ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Variegated Fairy-wren
The variegated fairywren (''Malurus lamberti'') is a fairywren that lives in eastern Australia. In a species that exhibits sexual dimorphism, the brightly coloured breeding male has chestnut shoulders and azure crown and ear coverts, while non-breeding males, females and juveniles have predominantly grey-brown plumage, although females of two subspecies have mainly blue-grey plumage. Like other fairywrens, the variegated fairywren is a cooperative breeding species, with small groups of birds maintaining and defending small territories year-round. Groups consist of a socially monogamous pair with several helper birds who assist in raising the young. Male wrens pluck yellow petals and display them to females as part of a courtship display. These birds are primarily insectivorous and forage and live in the shelter of scrubby vegetation east of the Great Dividing Range. Populations across central, northern and western Australia were considered subspecies of this species until 2018, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rufous-crowned Emu-wren
The rufous-crowned emu-wren (''Stipiturus ruficeps'') is a species of bird in the Australasian wren family, Maluridae. It is endemic to Australia. Taxonomy and systematics The rufous-crowned emu-wren is one of three species of the genus ''Stipiturus'', commonly known as emu-wrens, found across southern and central Australia. It was first described in 1899 by Archibald James Campbell, more than a century after its relative the southern emu-wren. Its species name is derived from the Latin words ''rufus'' "red" and ''caput'' "head". No subspecies are recognised, although birds from Western Australia may have redder plumage, and females more blue on the face and lores. It has been considered a subspecies of both the southern and mallee emu-wrens in the past.Rowley and Russell, p. 211. The common name of the genus is derived from the resemblance of their tails to the feathers of an emu. Description The rufous-crowned emu-wren is the smallest and most brightly coloured of the three em ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bird
Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. Birds live worldwide and range in size from the bee hummingbird to the ostrich. There are about ten thousand living species, more than half of which are passerine, or "perching" birds. Birds have whose development varies according to species; the only known groups without wings are the extinct moa and elephant birds. Wings, which are modified forelimbs, gave birds the ability to fly, although further evolution has led to the loss of flight in some birds, including ratites, penguins, and diverse endemic island species. The digestive and respiratory systems of birds are also uniquely adapted for flight. Some bird species of aquatic environments, particularly seabirds and some waterbirds, have further evolved for swimming. B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bouncing Ball
The physics of a bouncing ball concerns the physical behaviour of bouncing balls, particularly its motion before, during, and after impact against the surface of another body. Several aspects of a bouncing ball's behaviour serve as an introduction to mechanics in high school or undergraduate level physics courses. However, the exact modelling of the behaviour is complex and of interest in sports engineering. The motion of a ball is generally described by projectile motion (which can be affected by gravity, drag, the Magnus effect, and buoyancy), while its impact is usually characterized through the coefficient of restitution (which can be affected by the nature of the ball, the nature of the impacting surface, the impact velocity, rotation, and local conditions such as temperature and pressure). To ensure fair play, many sports governing bodies set limits on the bounciness of their ball and forbid tampering with the ball's aerodynamic properties. The bounciness of balls has ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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