Blue-winged Kookaburra
Dacelo leachii
Very large kingfisher with a lot of blue in the wings and tail. Note pale eye and pale, finely streaked head. Occurs across northern Australia in a variety of woodland habitats including parks and gardens. Often perches on powerlines. Its call is quite different to the Laughing Kookaburra, typically a loud rolling squawk and various loud yapping sounds.
识别特征
The adult blue-winged kookaburra measures around 38 to 42 cm (15 to 17 in) in length and weighs 260 to 330 g. Compared to the related laughing kookaburra, it is smaller, lacks a dark mask, has more blue in the wing, and has striking white eyes. It has a heavier bill than its larger relative. The head and underparts are cream-coloured with brownish streaks. It is sexually dimorphic, with a blue tail in the male, and a rufous tail with blackish bars in the female. Immature birds have more prominent brown bars and marks in their plumage, giving a "dirty" appearance, and their eyes are predominantly brown for the first two years of life.<p>Their call has been described as a maniacal cackling or barking.
分类信息
The blue-winged kookaburra was first collected by Sir Joseph Banks in 1770, but was initially overlooked and confused with the laughing kookaburra, and was finally officially described by Nicholas Aylward Vigors and Thomas Horsfield in 1826, its specific name commemorating British zoologist William Elford Leach. It is one of four members of the genus Dacelo which are commonly known as kookaburras. Alternative common names include barking or howling jackass, or Leach's kookaburra.<p>The number of subspecies is unclear - with four recognised by most authorities, although others have proposed that the three Australian subspecies gradually change across Australia and should be treated as one.
- 学名
- Dacelo leachii
- 命名信息
- Vigors & Horsfield, 1827
- 目
- Coraciiformes
- 科
- Halcyonidae
- 属
- Dacelo
分布与栖息地
The blue-winged kookaburra has a distribution from southern New Guinea and the moister parts of northern Australia, to the vicinity of Brisbane in southern Queensland across the Top End, and as far down the Western Australian coast as the Shark Bay area. It does not occur between Broome and Port Hedland in northwestern Australia. Widespread and common throughout its large range, the blue-winged kookaburra is evaluated as of least concern on the IUCN Red List of Threatened Species. Found in family groups of up to 12 individuals, it lives in open savannah woodland and Melaleuca swamps, as well as farmlands such as sugarcane plantations.
- 迁徙
- Resident species
保护状况
- 种群趋势
- unknown
照片
分布
鸟叫声
其他鸟类
Velvet Flycatcher
Myiagra eichhorni
Male is entirely glossy black with a slightly erect crest. Female has a rufous back and pale underparts; head color varies between islands, being dark on New Ireland, New Hanover, and New Britain, and pale on Djaul. Prefers primary forest and undisturbed second growth. Song is a series of loud, piercing whistles. Call is a buzzing nasal churr.
Mongolian Accentor
Prunella koslowi
A very plain accentor of dry, open areas with sparse, scrubby vegetation. Patterning more closely resembles that of a lark or a pipit than another accentor: pale sandy brown all over with a paler belly and a finely streaked back. For an accentor, oddly shy and skulking, usually sticking to cover and infrequently vocalizing.
Rusty Blackbird
Euphagus carolinus
Rusty edges to feathers and pale eyebrow in winter contrast with blackish feather bases. Breeding males are glossy black. Shorter tail than Common Grackle. Thinner bill than Red-winged Blackbird. Found in wooded swamps. Often in flocks; frequently mixes with Red-winged Blackbirds and Common Grackle in winter. Look for flocks perched at tops of trees bordering marshes and listen for their calls to help pick them out from large flocks of blackbirds.
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