Birds Of Japan 002:The Brown-Eared Bulbul-日本の野鳥002:ヒヨドリ

Birds Of Japan 002:The Brown-Eared Bulbul-日本の野鳥002:ヒヨドリ

The Brown-eared Bulbul (Hypsipetes amaurotis), also known as the Japanese Bulbul or Ijima's Bulbul, is a species of songbird belonging to the family Pycnonotidae. It is native to East Asia and is primarily found in Japan, Korea, China, and Taiwan.

Here are some key characteristics and information about the Brown-eared Bulbul:

Appearance:

1. Size: The Brown-eared Bulbul measures about 20-23 centimeters (8-9 inches) in length.
2. Plumage: It has a mostly brown body with a lighter brown or grayish-brown back and wings. The underparts are pale yellow or beige, and it has a distinctive brown patch behind each ear, which gives it its name. The head is relatively large with a short crest on top.
3. Eyes: The bulbul has dark eyes.
4. Bill: It has a short, stout bill, typically black in color.

Habitat:

1. The Brown-eared Bulbul inhabits a variety of habitats, including forests, woodlands, gardens, parks, and agricultural areas.
2. It can be found at various elevations, ranging from lowlands to mountains, typically up to around 1,500 meters (4,900 feet).

 

Behavior:

1. Diet: This bulbul species feeds on a diverse diet that includes fruits, berries, nectar, insects, and small invertebrates.
2. Vocalizations: The Brown-eared Bulbul is known for its melodious and varied songs. It has a repertoire of different calls and songs, often characterized by a rich, flute-like quality.
3. Social behavior: It is a sociable bird and is often found in small groups or pairs. It is known to be territorial during the breeding season.
4. Migration: Some populations of Brown-eared Bulbuls are migratory, while others are resident throughout the year.

Reproduction:

1. Breeding season: It typically breeds from April to July.
2. Nesting: The female builds a cup-shaped nest made of twigs, grass, and other plant materials, usually placed in a shrub or tree. The nest is well concealed.
3. Eggs: The female lays 2-4 eggs, which are usually pale blue or greenish with brownish spots.
4. Incubation and fledging: The incubation period lasts around 11-15 days, and both parents take turns incubating the eggs. The chicks fledge after approximately 12-14 days.

Conservation status: The Brown-eared Bulbul is considered to be a species of least concern on the International Union for Conservation of Nature (IUCN) Red List. Although the population size is unknown, it is believed to be stable, and the bird has a relatively wide distribution range. However, habitat loss and degradation due to urbanization and agricultural expansion can pose local threats to its populations.

Please note that any specific population trends or conservation status updates beyond September 2021 may not be reflected in the information provided.

 

 

以下はブチヒゲモズ（Hypsipetes amaurotis）に関する主な特徴と情報です。

外見：

• サイズ：ブチヒゲモズは体長約20-23センチメートル（8-9インチ）です。
• 羽毛：ほぼ茶色の体に、より明るい茶色または灰褐色の背中と翼があります。下面は淡黄色またはベージュで、両耳の後ろには特徴的な茶色の斑点があり、この名前が付けられています。頭部は比較的大きく、頂上には短い冠羽があります。
• 目：ブチヒゲモズは暗い色の目を持っています。
• 嘴：一般的には黒色の短く太い嘴を持っています。

生息地：

• ブチヒゲモズは森林、林、庭園、公園、農地などさまざまな生息地に生息しています。
• 標高は低地から山岳地帯まで様々で、通常は1,500メートル（4,900フィート）程度までです。

行動：

• 食性：このモズの種は果実、ベリー、花の蜜、昆虫、小型無脊椎動物など多様な食物を摂取します。
• 発声：ブチヒゲモズはその美しいメロディアスな歌声で知られています。さまざまなさえずりや鳴き声を持ち、豊かでフルートのような音質が特徴です。
• 社会的行動：社交的な鳥であり、しばしば小さな群れやペアで見られます。繁殖期には縄張り意識があります。
• 渡り：一部のブチヒゲモズは渡り鳥であり、他の個体群は一年中同じ地域に生息します。

繁殖：

• 繁殖期：通常、4月から7月にかけて繁殖します。
• 巣作り：メスは木の小枝、草、その他の植物の材料でカップ状の巣を作ります。巣はよく隠されます。
• 卵：メスは通常、2-4個の卵を産みます。これらの卵は一般的には淡い青色または緑がかった色で、褐色の斑点があります。
• 抱卵と雛の