花鸟图鉴 › 鸟类

雪鸮

Snowy Owl|シロフクロウ

Bubo scandiacus · 鸱鸮科 Strigidae

雪鸮
摄影:Bill Bouton from San Luis Obispo, CA, USA,来自 Wikimedia Commons,以 CC BY-SA 2.0 授权。照片未经修改(仅缩放)。
地区
日本与温带东亚
环境
城市与花园
颜色
白、黑、黄
体型
大型(50 厘米以上)
IUCN 等级
易危 (VU)

识别特征

大型白色鸮,是唯一以白色为主的鸮。雄鸟几乎纯白,雌鸟和幼鸟白底上有深色横斑;比北极熊和北极狐都更白,野外常像一块白石头或一堆雪。通常看不到耳簇羽,只有约 2 厘米长的退化小羽偶尔竖起。眼亮黄色,头相对较小,面盘浅。多为昼行性。

栖息环境

北极苔原,在地面的小丘上营巢,以旅鼠为主食;越冬时到开阔的农田、海岸沙丘、机场和冰封的湖面,站在地面或低矮的柱子上。

分布

北美和古北界的北极地区繁殖,越冬南迁的距离随旅鼠年份波动。中国东北和内蒙古的冬季偶见,华北罕见;日本北海道冬季有少量记录;新加坡无。全球数量下降,列为易危。

季节与习性

中国东北、内蒙古 11 月到次年 3 月偶有越冬个体,通常出现在开阔的草原和农田;一只雪鸮的消息会吸引大量摄影者。

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。

白鸟在雪地里要加一到一档半曝光,对准它的眼睛测光。它白天站在地上不动,长焦从远处用车拍,让它保持放松(眼睛半闭、身体蓬松);一旦它伸长身体盯着你,就已经太近了。为了「起飞照」驱赶雪鸮是最常见也最糟糕的做法,绝不要做。

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

雪原上的白色大鸟;黄眼睛的一点色。

相似物种

雕鸮(黄褐色,耳羽长);仓鸮(小得多,脸心形,腹白但背金黄)。

相关徽章

花鸟册里的「猫头鹰」:当视觉模型在照片里明确认出猫头鹰并在你评分后解锁。徽章只认到「猫头鹰」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

Snowy Owl

雪鸮 · シロフクロウ

Bubo scandiacus · Strigidae

Snowy Owl
Photo: Bill Bouton from San Luis Obispo, CA, USA, via Wikimedia Commons, licensed CC BY-SA 2.0. Unmodified apart from resizing.
Region
Japan and temperate East Asia
Habitat
towns and gardens
Colour
white, black, yellow
Size
large (over 50 cm)
IUCN status
Vulnerable
IOC breeding range
NA, PAL (widespread in the n)

Identification

A large white owl, the only owl with mainly white plumage. Males are nearly pure white, females and young barred dark on white; whiter than polar bears or Arctic foxes, in the field it often looks like a pale rock or a lump of snow. Ear tufts are usually invisible, just vestigial 2 cm feathers raised occasionally. Bright yellow eyes, a relatively small head and a shallow facial disc. Largely diurnal.

Habitat

Arctic tundra, nesting on a low mound on the ground and feeding mainly on lemmings; in winter on open farmland, coastal dunes, airfields and frozen lakes, standing on the ground or low posts.

Distribution

Breeds in the Arctic of North America and the Palearctic, wintering south by distances that vary with the lemming years. Occasional in winter in north-east China and Inner Mongolia, rare in northern China; a few winter records from Hokkaido; absent from Singapore. Declining worldwide; listed as vulnerable.

Season and behaviour

Occasional wintering birds in north-east China and Inner Mongolia from November to March, usually on open steppe and farmland; news of one draws many photographers.

Photography tips

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

A white bird on snow needs one to one and a half stops more, metering on the eyes. By day it stands still on the ground: photograph from a car with a long lens at a distance and keep it relaxed (eyes half closed, feathers fluffed); once it stretches tall and stares at you, you are already too close. Flushing a snowy owl for a flight shot is the commonest and worst practice; never do it.

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 great white bird on the snowfield; one touch of colour in the yellow eyes.

Similar species

Eurasian eagle-owl (tawny, long tufts); barn owl (much smaller, heart-shaped face, white below but golden above).

Related badge

The album badge "an owl" unlocks when the vision model explicitly names a an owl in your photo and you rate the analysis. The badge stops at "an owl": 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