花鸟图鉴 › 鸟类

黑鸢

Black Kite|トビ

Milvus migrans · 鹰科 Accipitridae

黑鸢
摄影:Thomas Kraft (ThKraft),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、新加坡与热带亚洲
环境
海岸与红树林、城市与花园
颜色
棕、黑
体型
大型(50 厘米以上)
IUCN 等级
无危 (LC)

识别特征

中型猛禽,翼展约 150 厘米,平均体重 735 克。通体深褐色,头颈略淡,眼后有一块深色斑;下体淡褐带深色纵纹;外侧飞羽黑色。翅膀有角度,尾浅叉,是飞行中最容易识别的特征。蜡膜和口角黄色,嘴黑,腿黄。叫声是尖锐的哨音接着一串颤音。

栖息环境

适应力极强:水域附近、草原、森林、海港、渔村和城市上空都能见到。多在热气流中盘旋寻找食物,既捕猎也捡食腐肉和人类垃圾。非繁殖季集群生活和夜宿。

分布

广布欧亚大陆、非洲和澳大利亚,可能是世界上数量最多的鹰科鸟类,全球估计达 670 万只。日本的港口城市和中国沿海很常见,新加坡少见。

季节与习性

日本和中国东部全年可见,冬季集群更明显。白天在海边、河口和垃圾场上空盘旋,日本的观光地常有俯冲抢食的个体。

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。

盘旋时用连续对焦,对准它转向你的那一刻,浅叉的尾巴要清楚;阴天逆光变剪影,有云的亮天最好。日本港口的黑鸢会低飞到很近,35 到 70mm 也能拍到带环境的画面。别用食物引诱。

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

海港与天空的开阔构图;盘旋的轨迹。

相似物种

赤鸢(略大,尾叉更深、体色带锈红,欧洲);黄嘴鸢(嘴黄,非洲);幼年的鹗和鵟飞行姿态不同,尾不叉。

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

Black Kite

黑鸢 · トビ

Milvus migrans · Accipitridae

Black Kite
Photo: Thomas Kraft (ThKraft), via Wikimedia Commons, licensed CC BY-SA 2.5. Unmodified apart from resizing.
Region
Japan and temperate East Asia, Singapore and tropical Asia
Habitat
coast and mangroves, towns and gardens
Colour
brown, black
Size
large (over 50 cm)
IUCN status
Least Concern
IOC breeding range
PAL, AF, OR, AU (widespread)

Identification

A medium-sized raptor with a wingspan of about 150 cm and an average weight of 735 g. Dark brown overall, paler on the head and neck with a dark patch behind the eye; pale brown below with dark streaks; black outer flight feathers. The angled wings and shallowly forked tail make it easy to identify in flight. Yellow cere and gape, black bill, yellow legs. A shrill whistle followed by a rapid whinnying call.

Habitat

Highly adaptable: near water, over grassland and forest, around harbours, fishing villages and cities. It glides on thermals in search of food, hunting but more often scavenging carrion and human refuse; gregarious outside the breeding season, roosting together.

Distribution

Across Eurasia, Africa and Australia and thought to be the world's most abundant accipitrid, with global estimates of up to 6.7 million. Common over Japan's port cities and the Chinese coast; scarce in Singapore.

Season and behaviour

Seen all year in Japan and eastern China, more obviously in winter flocks. Circles by day over coasts, estuaries and rubbish dumps; at Japanese tourist spots individuals dive to snatch food.

Photography tips

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

Use continuous focus as it circles and take the moment it banks towards you, with the forked tail clear; overcast backlight makes a silhouette, so bright cloudy days are best. Harbour kites in Japan come very close, and 35–70 mm can place them in their surroundings. Never bait them with food.

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

Open compositions of harbour and sky; the lines of circling.

Similar species

Red kite (slightly larger, deeper fork, rufous tones, Europe); yellow-billed kite (yellow bill, Africa); young osprey and buzzards fly differently and have no fork.

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