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草鸮

Eastern Grass Owl|ヒガシメンフクロウ

Tyto longimembris · 草鸮科 Tytonidae

草鸮
摄影:Ronny Overhate,来自 Wikimedia Commons,公有领域 / CC0 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
城市与花园
颜色
棕、白
体型
中型(20 到 50 厘米)
IUCN 等级
无危 (LC)

识别特征

中型鸮,与仓鸮大小相近:雄鸟 32 到 38 厘米,雌鸟 35 到 42 厘米,翼展 100 到 116 厘米。上体深褐或黄褐带淡色斑点,翅有黑色和黄褐色横纹,嘴很淡,腿被羽,眼深褐;和所有草鸮一样有心形面盘,淡褐色带白边。比仓鸮整体更深、腿更长。

栖息环境

高草地和沼泽,在草丛中压出「隧道」系统,在压平的草里休息和营巢;夜间在草地上空低飞捕鼠。

分布

印度东部到中国东部、菲律宾、台湾、苏拉威西、新几内亚东南部、澳大利亚北部和东北部、新喀里多尼亚;中国华南、华东的草地和台湾有分布,日本仅迷鸟,新加坡无。有人认为与非洲草鸮同种。

季节与习性

留鸟,全年可见;黄昏后在高草地上空无声地低飞,是唯一容易看到它的时刻。冬季枯草地上偶尔被人踩出草丛。

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。

黄昏它在草地上低飞巡猎,用高感光度、1/640 秒和连续对焦,在它固定的巡飞路线旁等。不要进入高草地寻找它的「隧道」,那会毁掉它的栖身处。白脸在暮色里最亮,减半档别过曝。

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

暮色草地上的低飞;心形白脸的一瞬。

相似物种

仓鸮(更淡,腿较短,多在建筑和树上);短耳鸮(黄眼、有短耳羽,同样在草地上)。

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

Eastern Grass Owl

草鸮 · ヒガシメンフクロウ

Tyto longimembris · Tytonidae

Eastern Grass Owl
Photo: Ronny Overhate, via Wikimedia Commons, public domain / CC0. Unmodified apart from resizing.
Region
Japan and temperate East Asia, Singapore and tropical Asia
Habitat
towns and gardens
Colour
brown, white
Size
medium (20 to 50 cm)
IUCN status
Least Concern
IOC breeding range
OR, AU (e India to e China, Philippines, Taiwan, Sulawesi, se New Guinea, n, ne Australia and New Caledonia)

Identification

A medium-sized owl about the size of a barn owl: males 32–38 cm, the larger females 35–42 cm, wingspan 100–116 cm. Dark brown or tan upperparts with pale spots, black and tan bars on the wings, a very pale bill, feathered legs and dark brown eyes; like all Tyto owls a heart-shaped facial disc, brown-buff with a white border. Darker overall and longer-legged than the barn owl.

Habitat

Tall grassland and swamps, making systems of tunnels through the grass and roosting and nesting on flattened vegetation; hunts rodents in low flight over the grass at night.

Distribution

Eastern India to eastern China, the Philippines, Taiwan, Sulawesi, south-east New Guinea, northern and north-eastern Australia and New Caledonia; in the grasslands of southern and eastern China and Taiwan; a vagrant to Japan; absent from Singapore. Some consider it conspecific with the African grass owl.

Season and behaviour

Resident, seen all year; the silent low hunting flight over tall grass after dusk is the one easy time to see it. In winter one is occasionally flushed from dead grass.

Photography tips

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

At dusk it quarters the grassland low: high ISO, 1/640 s and continuous focus beside its regular beat. Never walk into the tall grass to find its tunnels, which would destroy its shelter. The white face is the brightest thing in the twilight, so half a stop under.

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

Low flight over dusk grassland; the instant of a heart-shaped white face.

Similar species

Barn owl (paler, shorter legs, around buildings and trees); short-eared owl (yellow eyes, short tufts, the same grasslands).

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