花鸟图鉴 › 鸟类

蛎鹬

Eurasian Oystercatcher|ミヤコドリ

Haematopus ostralegus · 蛎鹬科 Haematopodidae

蛎鹬
摄影:Andreas Trepte,来自 Wikimedia Commons,以 CC BY-SA 2.5 授权。照片未经修改(仅缩放)。
地区
日本与温带东亚
环境
海岸与红树林
颜色
黑、白、橙
体型
中型(20 到 50 厘米)
IUCN 等级
近危 (NT)

识别特征

本地区最大的涉禽之一,体长 40 到 45 厘米,其中嘴占 8 到 9 厘米,翼展 80 到 85 厘米。黑白分明:头、胸和上体黑色,下体白色;嘴长、直、粗壮,橙红色,用来敲开或撬开贻贝等软体动物,也挖蚯蚓;眼红,腿较短、暗粉色。雌鸟嘴比雄鸟长。冬羽喉部有一道白色颈环。飞行时翅上有白色翼带。

栖息环境

海岸的泥滩、沙滩、岩岸、河口和盐田,吵闹而显眼;在卵石滩或沙地上刨坑产卵。

分布

分布最广的蛎鹬,三到四个亚种繁殖于西欧、中部古北界、堪察加半岛以及中国和朝鲜半岛的西海岸,分布区内没有其他蛎鹬。中国的繁殖种群在辽宁、山东沿海,越冬于江苏、福建等地沿海;日本冬季在东京湾等地有小群;新加坡无。

季节与习性

中国渤海沿岸 4 到 7 月繁殖,东南沿海 10 月到次年 3 月越冬;日本 10 月到 4 月。涨潮时在沙洲上集群休息,叫声尖锐响亮「kleep」。

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。

橙红的嘴和眼在黑白身体上是天然焦点,顺光下饱和度最高;侧逆光拍它撬贝壳的动作。涨潮把群体推到沙洲上时用长焦低拍,倒影里的黑白橙三色很简洁。别靠近繁殖的卵石滩。

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

黑白橙的高对比;潮水边的极简。

相似物种

没有相似的种;远看像黑白的大型鸻,但橙红长嘴独一无二。

相关徽章

暂无。本种还没有经过验证的照片识别,所以没有对应的徽章:图鉴里有名字不等于照片里有证据。

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

Eurasian Oystercatcher

蛎鹬 · ミヤコドリ

Haematopus ostralegus · Haematopodidae

Eurasian Oystercatcher
Photo: Andreas Trepte, via Wikimedia Commons, licensed CC BY-SA 2.5. Unmodified apart from resizing.
Region
Japan and temperate East Asia
Habitat
coast and mangroves
Colour
black, white, orange
Size
medium (20 to 50 cm)
IUCN status
Near Threatened
IOC breeding range
PAL (nw, sw, c Palearctic; far ne Palearctic)
IOC non-breeding range
coastal AF, OR

Identification

One of the largest waders of the region, 40–45 cm long with the bill accounting for 8–9 cm and a wingspan of 80–85 cm. Boldly pied: black head, breast and upperparts, white below; a long, straight, strong orange-red bill used to smash or prise open mussels and other molluscs and to find earthworms; red eye, rather short dull-pink legs. The female's bill is longer than the male's. In winter a white throat collar. A white wing-bar shows in flight.

Habitat

Coastal mud, sand, rocky shores, estuaries and salt pans, noisy and conspicuous; lays in a scrape on shingle or sand.

Distribution

The most widespread oystercatcher, with three or four subspecies breeding in western Europe, the central Palearctic, Kamchatka and the west coasts of China and Korea, with no other oystercatcher in its range. China's breeders are on the Liaoning and Shandong coasts, wintering in Jiangsu, Fujian and elsewhere; small winter flocks in Japan, such as Tokyo Bay; absent from Singapore.

Season and behaviour

Breeds on China's Bohai coast from April to July and winters on the south-east coast from October to March; in Japan from October to April. Roosts in flocks on sandbars at high tide with a loud shrill kleep.

Photography tips

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

The orange-red bill and eye on a pied body are a natural focus, most saturated in front light; side backlight for the shell-prising action. When the tide pushes the flock onto a sandbar, go low with a long lens for the clean black, white and orange in the reflection. Keep away from breeding shingle.

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

High contrast of black, white and orange; tideline minimalism.

Similar species

No similar species; from afar like a big pied plover, but the long orange-red bill is unique.

Related badge

None yet. No validated photo recognition exists for this species, so no badge is tied to it: a name in the encyclopedia is not evidence in a photograph.

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