Java Sparrow

padda oryzivora

The Java Sparrow, also known as the Java Finch or Java Rice Bird, is a small, striking passerine native to Java and Bali. Renowned for its elegant appearance and social behavior, it has long been a popular cage bird, leading to its introduction and establishment of wild populations across various tropical regions globally. Despite its widespread presence in captivity and as an introduced species, the wild populations in its native range face severe threats, highlighting a paradox in its conservation status. These resilient birds are known for their strong association with human-modified landscapes, particularly agricultural areas where rice is cultivated, and often form large, lively flocks. Their adaptable nature and captivating calls make them a fascinating subject for both birdwatchers and conservationists.

生息地: The Java Sparrow is typically found in open grasslands, cultivated fields, particularly rice paddies, and often in proximity to human settlements such as urban parks, gardens, and villages.

外見

The Java Sparrow is easily identified by its distinctive plumage. It features a slate-grey body, a prominent black head, and a stark white cheek patch that contrasts sharply with the head. Its most striking features include a thick, conical, rose-pink bill and a reddish-pink orbital ring around its dark eyes. The belly is a paler grey, fading to white on the undertail coverts, while the rump and tail are also slate-grey. Juveniles are duller with a black bill and less defined markings. Measuring about 13-17 cm in length, it has a compact build typical of a finch.

界Animalia門Chordata綱Aves目Passeriformes科Estrildidae属Padda

Java Sparrow

カテゴリ

鳥類

レア度

Common

危険度

1/5 · 非常に低い

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おもしろい事実

Despite being critically endangered in its native Indonesia, it is considered an agricultural pest in many areas where it has been introduced due to its appetite for rice.

Java Sparrows are renowned for their striking beauty and were frequently depicted in traditional Chinese and Japanese art.

The scientific name "Padda oryzivora" literally translates to "rice eater," reflecting its strong association with rice fields.

They communicate through a variety of chirps and calls, and males perform elaborate courtship dances and songs to attract females.

特殊能力

Their powerful, conical bill is perfectly adapted for efficiently husking and consuming various seeds, especially grains like rice, allowing them to exploit abundant food sources.

Java Sparrows forage and roost in large flocks, a behavior that provides increased protection against predators through collective vigilance and alarm calling.

This species shows remarkable ability to thrive in human-modified environments, including busy urban parks and agricultural lands, effectively utilizing available food and nesting sites.

サイズと詳細

長さ: 13-17 cm
翼開長: 20-25 cm
体重: 0.02-0.03 kg
寿命: 5-10 年
一度の産卵数: 4-7
抱卵期間: 13-14 日

食性と食事

The Java Sparrow is primarily granivorous, feeding almost exclusively on seeds, particularly rice. They can become significant agricultural pests in regions where they are introduced due to their preference for ripening grains.

主な食物

Rice grains
Grass seeds
Millet
Sorghum
Weed seeds
Occasional insects

採餌方法

Foraging

生態系とのつながり

eaten by

Rice Plant

Oryza sativa

Primary food source in agricultural areas.

eaten by

Feral Cat

Felis catus

Common predator, especially in urban and suburban environments.

competitor

House Crow

Corvus splendens

May prey on eggs and chicks in nests, and compete for food resources.

competitor

Spotted Dove

Spilopelia chinensis

In introduced ranges, these species may compete for similar seed resources and nesting sites.

特徴

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別名

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コレクション

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安全性

危険度

1/5 · 非常に低い

まだ特別な安全上の注意はありません。

よくある質問

Java Sparrowを見分けるには？

Java Sparrowを識別する最も簡単な方法は、Snappit自然識別アプリを使用することです。

Java Sparrowの長さは何ですか？

13-17 cm

Java Sparrowの翼開長は何ですか？

20-25 cm

Java Sparrowの体重は何ですか？

0.02-0.03 kg

Java Sparrowの寿命は何ですか？

5-10 年

Java Sparrowは何を食べますか？

Java Sparrowは通常どこに生息していますか？

The Java Sparrow is typically found in open grasslands, cultivated fields, particularly rice paddies, and often in proximity to human settlements such as urban parks, gardens, and villages.

Java Sparrowはどのように狩りをしますか？

Foraging