Rose-ringed Parakeet
Psittacula krameri
Vibrantly bright green parakeet, frequently found in woodland, parks, and gardens, where it feeds mainly in trees. Nests in cavities, including holes in buildings. Easily overlooked if quiet, as the bright green plumage blends easily with foliage. Note the very long slender tail and bright red bill; male has narrow black-and-pink neck ring. Closely resembles the larger Alexandrine Parakeet, which has a wine-red patch on each shoulder. Like other parakeets, raucous and social, often appearing in noisy groups giving sharp screeching calls. Native to Africa and South Asia, introduced locally around the world, from Europe and the Caribbean to Japan and Hawaii.
识别特征
The rose-ringed parakeet is sexually dimorphic. The adult male sports a pink and black neck ring, and the hen and immature birds of both sexes either show no neck rings, or display shadow-like pale to dark grey neck rings. Both sexes have a distinctive green colour in the wild with a red beak and blue tail, and captive bred ringnecks have multiple colour mutations which include turquoise, cinnamon, olive, white, blue, violet, grey and yellow. Rose-ringed parakeets measure on average 40 cm (16 in) in length, including the tail feathers, a large portion of their total length. Their average single-wing length is about 15 to 17.5 cm (5.9 to 6.9 in). In the wild, this is a noisy species with an unmistakable squawking call. Captive individuals can be taught to speak. They are a herbivorous and non-migratory species.
分类信息
Four subspecies are recognised, though they differ little:<p>The Asian subspecies are both larger than the African subspecies.<p>The genus name Psittacula is a diminutive of Latin psittacus, "parrot", and the specific krameri commemorates the Austrian naturalist Wilhelm Heinrich Kramer.<p>In 2019, a genetic study revived the genus Alexandrinus, formerly viewed as a synonym of the current genus Psittacula. Some organisations, including the IUCN, have accepted the new taxonomy.
- 学名
- Psittacula krameri
- 命名信息
- (Scopoli, 1769)
- 目
- Psittaciformes
- 科
- Psittaculidae
- 属
- Psittacula
分布与栖息地
Since the 19th century, the rose-ringed parakeet has successfully colonized many other countries. It breeds further north than any other parrot species. It has established itself on a large scale in Germany, France, Belgium, the Netherlands, Italy, and the UK. See Feral Birds section below.<p>This shows that the risk of parakeet establishment may rise further as a result of decreasing frost days due to global warming, rising urbanization, and rising human populations. Because of the significant separate parakeet imports in Europe, researchers are capable of investigating the widely held hypothesis of climate matching and human activity at the species level.
- 迁徙
- Resident species
行为
Migration pattern: Resident species.
保护状况
Population trend: rising.
- 种群趋势
- rising
照片
分布
鸟叫声
其他鸟类
White-ringed Flycatcher
Conopias albovittatus
One of several similar flycatchers that are medium-sized, upright, bright yellow below, with bold black-and-white head patterns. White-ringed has a noticeably long thin bill; it’s longer than Social Flycatcher's, for example, but thinner than Great Kiskadee's. The white eyebrow wraps around the back of the head (hence "White-ringed"). Also look for the very black cheek (not gray) and drab brown (not rufous) wings. Usually perches fairly high at the forest edge, often higher up than other similar species.
White-lored Gnatcatcher
Polioptila albiloris
Tiny gray and white bird with cocked tail. Common in tropical dry forest and scrub of Pacific lowlands. Male has a black cap, solid in breeding season, but with narrow white eyebrow in non-breeding season. Female has gray cap with narrow white eyebrow year-round. Told from Blue-gray Gnatcatcher by face pattern: Blue-gray has a white eyering, not a white brow.
Short-tailed Pygmy-Tyrant
Myiornis ecaudatus
Tiny stump-tailed flycatcher; one of the smallest birds on earth. Minute size and compact body give it a unique appearance, in some ways looking more like a bumblebee than a bird. Whitish underparts with green back, gray head, and white spectacles. Found in mature and secondary rainforest, especially in areas with tall trees. Usually perches in the rainforest midstory and can be tricky to spot. Its song is a soft pair of short trilled notes “trrr-trrr,” sounding rather insectlike.
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