花鸟图鉴 › 鸟类

灰头渔雕

Grey-headed fish eagle|ウオクイワシ

Icthyophaga ichthyaetus · 鹰科 Accipitridae

灰头渔雕
摄影:Sri Srikumar,来自 iNaturalist,公有领域 / CC0 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、森林、海岸与红树林
颜色
灰、棕、白
体型
大型(50 厘米以上)

识别特征

体长 61 到 75 厘米,翼展 155 到 170 厘米,体格粗壮,嘴小、头小、颈长,尾圆,腿较短、跗跖裸露、爪长。成鸟头部浅灰,虹膜色浅;胸和颈褐色,上体暗褐,腹部和尾白色,尾端前有一道宽的黑带。雌鸟比雄鸟重。幼鸟色浅,带深色纵纹。

栖息环境

海拔 1500 米以下的低地森林,靠近缓流河、湖泊、潟湖、水库、沼泽和河口筑巢;在斯里兰卡常见于灌溉水塘。

分布

印度和东南亚至马来西亚、印度尼西亚西部和菲律宾;大多数地区不常见,有的地方稀少。

季节与习性

留鸟,单独或成对活动,长时间直立停在水面上方的光秃枝头,偶尔俯冲抓鱼。多数地区的繁殖期在 11 月到次年 5 月。

分类说明

早先的研究记录只写了种加词 ichthyaetus;本页学名按 IOC 世界鸟类名录 15.2 和英文维基百科,作 Icthyophaga ichthyaetus(注意属名拼写是 Icthyophaga,没有第二个 h)。

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。

它会在同一根水边枯枝上停很久:选好位置后不要再靠近,用 500 到 800 毫米的长焦等它起飞或扑鱼。起飞前它常压低身体,这时把快门提到 1/2000 秒以上并开连拍。白色尾羽和浅灰头部在强光下容易过曝,宁可欠曝 0.3 档。繁殖期不要接近巢树,也不要公开巢的位置。

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

捕食的动作瞬间;水面上方干净的构图。

相似物种

渔雕(Icthyophaga humilis,羽色相似但小得多);玉带海雕(同样在水边捕鱼,但更大,翅更长,下体更暗)。

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 iNaturalist,授权和作者见图下说明。

收录缘由:这种鸟出现在 YouTube 视频说明栏(波遊足跡 EP1) 中(是视频的说明文字,不是字幕)。视频只说明它被提到过;名称以 IOC 世界鸟类名录 15.2 为准,其他事实依据下列资料来源。

资料来源

Flora & Birds › Birds

Grey-headed fish eagle

灰头渔雕 · ウオクイワシ

Icthyophaga ichthyaetus · Accipitridae

Grey-headed fish eagle
Photo: Sri Srikumar, via iNaturalist, public domain / CC0. Unmodified apart from resizing.
Region
Singapore and tropical Asia
Habitat
rivers and wetlands, forest, coast and mangroves
Colour
grey, brown, white
Size
large (over 50 cm)

Identification

61 to 75 cm long with a 155 to 170 cm wingspan: a bulky eagle with a small bill, small head on a long neck, rounded tail, short bare-shanked legs and long talons. Adults have a pale grey head and pale iris, brown breast and neck, dark brown upperparts, and white belly and tail with a broad black band near the tip. Females are heavier. Juveniles are paler with dark streaks.

Habitat

Lowland forest up to 1,500 m, nesting near slow rivers, lakes, lagoons, reservoirs, marshes and estuaries; in Sri Lanka often at irrigation tanks.

Distribution

India and Southeast Asia to Malaysia, western Indonesia and the Philippines; uncommon in most places and rare in some.

Season and behaviour

Resident, alone or in pairs, perching upright for long periods on bare branches over water and dropping down for fish now and then. Breeds from November to May in most of its range.

Photography tips

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

It stays on the same dead branch over water for a long time: pick your spot, stop approaching and wait with 500 to 800 mm for take-off or a strike. It often crouches before launching, the moment to go to 1/2000 s and burst. The white tail and pale head blow out in strong sun, so underexpose by 0.3 EV. Keep away from nest trees in the breeding season and never publish nest locations.

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

Moments of action; clean frames over open water.

Similar species

Lesser fish eagle (Icthyophaga humilis, similar plumage but much smaller); Pallas's fish eagle (same habitat and habits, but larger, longer-winged and darker below).

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 iNaturalist; its licence and author are under it.

Why it is listed: this bird is named in the YouTube video description (波遊足跡 EP1) (the description text, not the subtitles). The video only shows that it was mentioned; names follow the IOC World Bird List 15.2 and the facts follow the sources below.

Sources