Sooty Oystercatcher
Haematopus fuliginosus
Heavy-set shorebird with entirely black plumage and long, thick reddish bill. It has a distinctive fleshy red or yellow eye-ring and very thick pale-pink feet and legs. Exclusively coastal, where it can be found walking around on the edge of rocky headlands, on rock shelves, and along rocky beaches on small islands. Typically found in pairs or small groups. Its call is a loud slow whistled "chew", or when agitated a rapidly repeated "squeaky toy" call.
识别特征
Measuring 42 to 52 cm (16.5 to 20.5 in) long with a bill length of 5–8 cm (2–3 in), the sooty oystercatcher has all black plumage, with pink-red legs and scarlet or orange-red bill and eyes. The heaviest of all oystercatchers, the sooty oystercatcher weighs up to 980 g (2.16 lb), averaging around 819 g (1.806 lb), with females larger and heavier in both subspecies. Males have shorter, thicker bills and females have longer, thinner bills. The 19% average difference in length is the most marked of any oystercatcher species. Immature birds have grey-brown legs, a bill tipped with brown, a browner cast to their plumage, and brown eyes. The bill, eyes and legs become red by the second year.
分类信息
John Gould described the sooty oystercatcher in 1845. Its species name is the Latin adjective fuliginosus, "sooty". Two subspecies are recognised, the nominate from the coastline of southern Australia and subspecies ophthalmicus from northern Australia. The southern subspecies is larger and heavier than the northern. The northern one, with a more yellowish eye ring, is found from the Kimberleys across the top of the country to Mackay in central Queensland. There is considerable overlap, as the southern subspecies has been found up to Cape York. Subspecies ophthalmicus has been thought distinctive enough to warrant species status and needs further investigation. Black redbill is a local name.
- 学名
- Haematopus fuliginosus
- 命名信息
- Gould, 1845
- 目
- Charadriiformes
- 科
- Haematopodidae
- 属
- Haematopus
分布与栖息地
Preferring rocky shores, the sooty oystercatcher is endemic to Australia. There are an estimated 11,500 individuals, 4000 of the nominate race and 7500 of the northern race. It is common around the Tasmanian coastline and Bass Strait islands. However it is declared Rare in South Australia and Queensland, Near Threatened in Victoria and Endangered in New South Wales.
- 迁徙
- Resident species
保护状况
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Striped Wren-Babbler
Kenopia striata
Brown-and-white terrestrial babbler that scuttles around in the leaf litter like a rodent. Note lightly speckled black crown, white face and underparts, and rusty-orange stain on the forehead. Favors wetter forests, ranging from lowlands up into submontane areas. Gives short haunting whistles, either singly or in series.
Slender-billed Gull
Chroicocephalus genei
Medium-sized gull with a long, slender bill. Breeding adult has a clean white head and dark red bill, and frequently shows a strong rosy-pink flush to the underparts. Non-breeding adult similar, but may show slight smudge on the head. Immature has orange bill with small brown patches on the wings, most readily seen in flight. Compare with Black-headed Gull; note Slender-billed's longer bill, sloping forehead, and "snouty" profile. Breeds in colonies in inland and coastal wetlands, but restricted to coastal wetlands when not breeding. Away from main range, found singly or in pairs, at times in association with much commoner Black-headed Gull.
Eastern Double-collared Sunbird
Cinnyris mediocris
A medium-sized sunbird. Males are colorful, red and green, and females drab brownish. Males have yellow shoulder tufts that are usually hidden. Found in montane forest clearings and edges, heath, scrub, and gardens. Very similar to Northern Double-collared and Olive-bellied Sunbirds, but males separated by the blue border above the red chest band. Female hard to separate from Northern Double-collared, but can be separated from Olive-bellied by the lack of a pale eye-stripe. The call is a pure “tseet” that often precedes a quick jumble of high-pitched notes.
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