Javan Myna
Acridotheres javanicus
Originally restricted to the Indonesian islands of Java and Bali, this crested myna has since been introduced to Singapore, Taiwan, and various parts of Malaysia and Indonesia. Dark gray overall with a spiffy erect crest and a bright yellowish-orange bill. Darker than Jungle Myna, with which it overlaps in both its native and introduced ranges. Also compare with Crested Myna; note Javan’s brighter bill and white vent. Bold and social, foraging in farms, parks, and gardens. Roosts in large noisy flocks, often close to human habitation.
识别特征
The Javan myna is mainly black. The wings are brownish-black, and the primaries have white bases, displayed in flight as a striking white wing bar, along with a white tail bar. The undertail-coverts are white. There is a short crest on the forehead. Its beak, legs and feet are yellow. The eyes are lemon-yellow. The immature is browner. Its length is 21–23 cm (8.3–9.1 in). Its weight is about 100 g (3.5 oz).
分类信息
The Javan myna is sometimes included in the great myna (Acridotheres grandis) or the jungle myna (A. fuscus). The International Ornithologists' Union recommends not using the name "white-vented myna" to avoid confusion with the Pale-bellied Myna A. cinereus.
- 学名
- Acridotheres javanicus
- 命名信息
- Cabanis, 1851
- 目
- Passeriformes
- 科
- Sturnidae
- 属
- Acridotheres
分布与栖息地
The Javan myna is native to Bali and Java, and has been introduced to southeastern Thailand, southern Malaysia, Singapore, Sumatra, the Lesser Sundas, Taiwan, Puerto Rico, Japan and Nepal. It is found in cities and cultivated areas.
- 迁徙
- Resident species
行为
The Javan myna is omnivorous and eats seeds, fruit, nectar, insects and human waste. It is often found in large groups. Its voice is similar to that of the common myna. It builds its nest in holes. The eggs are bluish-glaucous. Javan mynas are bold and not very afraid of humans. Javan mynas are kept in cages in Malaysia and Indonesia. The birds scavenge in groups, minimum two but usually three or more, with all except one feeding and one usually at a vantage point keeping a look out. If the bird that is keeping watch sees anything that might pose a threat, it alarms the group members with a high pitch tweet and they all flee the area swiftly.[citation needed] If one of them is separated, they would tend to tweet to attract other mynas of their kind to come over.
保护状况
- 种群趋势
- declining
照片
分布
鸟叫声
其他鸟类
Red-capped Robin-Chat
Cossypha natalensis
A medium-sized, vibrantly colored robin-chat with tail, underparts, throat, and face all pumpkin orange, emphasizing the beady dark eye. The back and wings are steel-blue, except for the dark central tail feathers. Pairs are secretive in thickets, forest patches, and dense woodland, where they typically forage on the ground. The species is often first detected by its plaintive trembling “creee-craww” contact call and other typical fluty robin-chat vocalizations, including many imitations of other species.
Swinhoe's Rail
Coturnicops exquisitus
This sparrow-sized rail moves like a ghost through grassy meadows and wetlands. Prefers to run instead of fly, but white wing patches are unmistakable if seen. Flight is weak with dangling legs, drops into cover quickly. Belly is white with brown bars on the sides and upperparts are darker brown with fine white stripes. Voice is the only way to detect this species; its repertoire is varied, with grunts, squeals, and tapping notes.
Fernandina's Flicker
Colaptes fernandinae
A medium-sized bird of open habitats; often found singly or in pairs feeding on the ground. Its body and tail are largely barred mustard yellow and black. The Northern Flicker is very similar in size and shape, but it has a black crescent across its chest and a spotted belly, and in flight, an obvious white rump unlike Fernandina’s Flicker. Calls include a squeaky sputtering “chee-uh-uh-uh-uh…” and a rhythmic “ka-flick, ka-flick, ka-flick…”
开始您的观鸟之旅
在户外识别鸟类，并在下一次观察时随手查阅鸟类图鉴。