花鸟图鉴 › 鸟类

棉凫

Cotton Pygmy Goose|ナンキンオシ

Nettapus coromandelianus · 鸭科 Anatidae

棉凫
摄影:Glen Fergus,来自 Wikimedia Commons,以 CC BY-SA 2.5 授权。照片未经修改(仅缩放)。
地区
新加坡与热带亚洲
环境
河湖湿地
颜色
白、绿、棕
体型
小型(约 20 厘米以下)
IUCN 等级
无危 (LC)

识别特征

世界上最小的水禽之一,小的个体只有 160 克、26 厘米。嘴像雁一样短而基部深。雄鸟额和头顶深褐,颈基有一道宽阔的黑绿色颈环,头侧和颈白色,背、翅和肩羽深褐带绿紫光泽;飞行时翅深色、飞羽白色带黑尖。雌鸟头顶较暗,有一道褐色贯眼纹,颈环换成斑点,脸有细纹。虹膜红色,腿黑。

栖息环境

有良好水生植物的小到大型水域:池塘、湖泊、水库和水田,成对或多对一起活动,在水边的树上夜宿,在树洞里营巢。飞行能力强,冬季扩散很远。

分布

繁殖于南亚和东南亚,延伸到澳大利亚昆士兰;中国华南、海南和台湾有分布,新加坡的湿地和水库常见;日本仅为迷鸟。繁殖季与雨季一致。

季节与习性

新加坡全年可见,雨季繁殖;中国华南 4 到 9 月较多。多在有睡莲和浮叶的水面,常伏在浮叶间不易发现。

拍摄建议

以下为 FilmAnalysis 编辑的拍摄经验,不是资料来源中的内容。

它在睡莲和浮叶间游动,用长焦低机位把浮叶铺成前景,白色的头颈很容易过曝,减半档。雄鸟黑绿的颈环需要顺光才显色。起飞时白色飞羽带黑尖一闪,1/2000 秒。别惊动在树洞附近的亲鸟。

拍鸟守则:与鸟保持它不改变行为的距离;不靠近、不公开巢和繁殖地点;不用食物、录音回放或闪光灯引诱;不修剪巢周围的枝叶;在保护区遵守观察区和步道的规定。

适合的摄影风格

睡莲塘里的小鸭;白绿的清新色。

相似物种

绿翅鸭雌鸟(褐色,大得多,无白脸);没有其他这么小的鸭。

相关徽章

花鸟册里的「鸭子」:当视觉模型在照片里明确认出鸭子并在你评分后解锁。徽章只认到「鸭子」这一层,不区分具体的种,也不会因为这一页存在就解锁。

本页插图为 FilmAnalysis 原创绘制。照片来自维基共享资源,授权和作者见图下说明。

收录缘由:本种来自 《观鸟笔记》物种清单(名称经 IOC 15.2 核对)。名称以IOC 世界鸟类名录 15.2为准,事实依据下列资料来源,照片识别暂不提供。

资料来源

Flora & Birds › Birds

Cotton Pygmy Goose

棉凫 · ナンキンオシ

Nettapus coromandelianus · Anatidae

Cotton Pygmy Goose
Photo: Glen Fergus, via Wikimedia Commons, licensed CC BY-SA 2.5. Unmodified apart from resizing.
Region
Singapore and tropical Asia
Habitat
rivers and wetlands
Colour
white, green, brown
Size
small (under about 20 cm)
IUCN status
Least Concern
IOC breeding range
OR, AU (India to ne Australia)
IOC non-breeding range
AU

Identification

Among the smallest waterfowl in the world, small individuals only 160 g and 26 cm. The goose-like bill is short and deep at the base. The male has a dark brown forehead and crown, a broad blackish-green collar at the base of the neck, white head sides and neck, and dark brown back, coverts and scapulars with green and purple gloss; in flight the wings are dark with white flight feathers tipped black. The female has a duller cap, a brown line through the eye, spots in place of the collar and a flecked face. Red iris, black legs.

Habitat

Small to large waters with good aquatic vegetation: ponds, lakes, reservoirs and paddies, in pairs or groups of pairs, roosting in waterside trees and nesting in tree holes. A strong flier that disperses widely in winter.

Distribution

Breeds in South and South-East Asia and on to Queensland in Australia; found in southern China, Hainan and Taiwan and common on Singapore's wetlands and reservoirs; only a vagrant to Japan. Breeding follows the rains.

Season and behaviour

Seen all year in Singapore, breeding in the rainy season; most numerous in southern China from April to September. Usually among water lilies and floating leaves, where it is easily overlooked.

Photography tips

These are the FilmAnalysis editors' notes, not content from the sources.

It swims among lilies and floating leaves: a long lens from low down spreads the leaves as foreground, and the white head and neck clip easily, so half a stop under. The male's black-green collar colours only in front light. On take-off the white flight feathers with black tips flash at 1/2000 s. Do not disturb adults near a nest hole.

Field ethics: keep a distance at which the bird does not change its behaviour; never approach or publish nest sites; no baiting, playback or flash; never clear vegetation around a nest; follow reserve rules and stay on paths.

Photographic styles

A small duck in a lily pond; fresh white and green.

Similar species

Female teal (brown, much larger, no white face); no other duck is this small.

Related badge

The album badge "a duck" unlocks when the vision model explicitly names a a duck in your photo and you rate the analysis. The badge stops at "a duck": it does not tell species apart, and this page existing unlocks nothing.

The illustration is original FilmAnalysis artwork. The photograph is from Wikimedia Commons; its licence and author are under it.

Why it is listed: this species comes from the Birdwatching Notebook species list (names checked against IOC 15.2). Names follow the IOC World Bird List 15.2; the facts follow the sources below; photo recognition is not offered.

Sources