Eastern Bristlebird
Dasyornis brachypterus
Small, long-tailed terrestrial bird of southeastern New South Wales and ranges on the Queensland border. Mottled grayish brown, paler below, with red eye, reddish wing, pale throat, faint pale supercilium, and long, graduated rusty tail. Dark bristles around bill give this species its name. Runs around on the ground in forested areas with dense understory, as well as in coastal heathland, and rarely seen in flight. Calls include a chirpy whistled "chip chip whirr-eee."
分类信息
- 学名
- Dasyornis brachypterus
- 命名信息
- (Latham, 1801)
- 目
- Passeriformes
- 科
- Dasyornithidae
- 属
- Dasyornis
分布与栖息地
The eastern bristlebird is very territorial and will often use a distinct, loud melodic song to mark its territory.<p>Surveys have found the bird prefers to live in small, localised populations, and prefer to build their nests on the ground in areas of dense, clumped grasses.<p>An isolated colony was found in the Conondale Range in southeastern Queensland in the 1980s.<p>In late 2021, it was estimated that there were only about 2,500 of the species left in the wild, existing in isolated populations in eastern New South Wales and southern Queensland. There are four separate populations: one in northern NSW and into southern Queensland, including the Border Ranges National Park (around 40 birds); one in the Southern Highlands; one in the Jervis Bay area; and one southern population around the NSW border with Victoria, which includes Nadgee Nature Reserve and Croajingolong National Park.<p>Sites identified by BirdLife International as being important for eastern bristlebird conservation are the Scenic Rim on the border between southern Queensland and northern New South Wales, Budderoo and Barren Grounds, Jervis Bay, and Nadgee to Mallacoota Inlet straddling the border between south-eastern New South Wales and eastern Victoria.
- 迁徙
- Resident species
保护状况
Eastern bristlebirds are listed as endangered on the Australian Environment Protection and Biodiversity Conservation Act 1999.<p>Because of the small, isolated nature of the populations of eastern bristlebird, it suffers from a lack of genetic diversity, which can lead to extinction. In an effort to counteract this, a technique known as "genetic rescue" is being used in New South Wales as of 2021[update], under the Saving our Species program. The program involves selecting individuals that have been breeding successfully from the larger populations of birds, and putting them into the smaller ones.[3]<p>Along with the genetic rescue program, a captive breeding program is under way at the Currumbin Wildlife Sanctuary in Queensland. By breeding the birds selectively, the conservationists aim to improve resistance to disease, increase genetic diversity and raise the fertility rate, especially in the smallest population in northern NSW.[3]<p>Several organisations are involved in the program besides Currimbin: Cesar Australia,[a] the Victorian Department of Environment, Land, Water and Planning (DELWP), the University of Queensland, Parks Australia and the Australian Department of Defence.[3]
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Rufous-fronted Antthrush
Formicarius rufifrons
Range-restricted antthrush of river’s-edge habitats and bamboo. Grayish brown, with an orange forehead. Found in successional forest with dense understory, including areas with bamboo or dense heliconia thickets. Listen for its song, a long, rising-falling series of musical whistles. Voice is similar to the slower song of Buff-throated Woodcreeper, but ascends faster in the middle of the song.
Blue-lored Antbird
Hafferia immaculata
Large, chunky, dark antbird restricted to northern Colombia and western Venezuela. Male entirely black with namesake blue lores and triangular patch of paler bluish skin behind eye. Female similar but warm dark brown instead of black. Long broad tail often strongly flicked downward and raised back up slowly. Usually seen in pairs, which forage close to the ground within forest. Can be shy and difficult to see. Sometimes follows ant swarms, but frequently seen away from them. Found mainly in the foothills and lower subtropics, up to 1,800 m. Listen for a mourning series of plaintive whistles, “teew, teew, teew, teew.”
Western Nicator
Nicator chloris
An unusual bushshrike-like bird with a heavy hooked bill, olive-green above and pale below with bold white spotting on the wings. The yellow corners of the tail can be conspicuous in flight. Found in rainforest, gallery forest, thickets, lush secondary habitat, and dense woodland. Skulking and secretive, usually remaining in tangled understory and mid-level vegetation. Very similar to Eastern Nicator, but their ranges do not overlap. Also similar to Yellow-throated Nicator, but larger, without a bright yellow throat and streak above the eye. Very vocal and most often detected by voice; the song is a quick jumble of wooden notes, and the common call is a penetrating “chaak.”
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