Birds Of Japan 41:Eastern Crowned Warbler (Phylloscopus coronatus) センダイムシクイ

Eastern Crowned Warbler センダイムシクイ Scientific name: Phylloscopus coronatus The Eastern Crowned Warbler is a small forest warbler that visits Japan in the warmer months. In Japanese it is called センダイムシクイ / Sendai-mushikui. It has olive-green upperparts, pale underparts, a pale eyebrow line, wing bars, and a clear pale stripe along the center of the crown. In Japan, the Eastern Crowned Warbler is mainly a summer visitor. It arrives in spring, breeds in forests, and leaves in autumn for warmer wintering areas. It is often found in broadleaf forests, mixed forests, mountain woods, forest edges, and wooded valleys. Like many warblers, it can be difficult to see clearly because it moves quickly among leaves and branches, but its song is a very useful clue.

Habitat: Broadleaf forest, mixed forest, mountain woodland, forest edges, wooded valleys
Range in Japan: Summer visitor and breeding bird across much of Japan, mainly in forests
Diet: Small insects, caterpillars, spiders, and other tiny invertebrates
Season: Spring to autumn in Japan; migrates south for winter
Size: About 12–13 cm
Nesting: Builds a small nest low in vegetation or on/near the ground in forest cover
Behavior: Active and quick-moving; searches leaves and branches for insects; often detected by song
Conservation: Generally widespread, but depends on healthy forest habitats

Eastern Crowned Warbler センダイムシクイ

The Eastern Crowned Warbler is a small, active summer visitor to Japan, often found in broadleaf forests, mixed woodlands, mountain forests, wooded valleys, and quiet forest edges. It has olive-green upperparts, pale underparts, a clear pale eyebrow, and a distinctive pale crown stripe that helps separate it from similar forest warblers.

This warbler moves quickly through leaves and branches while searching for insects, larvae, spiders, and other small invertebrates. During the breeding season, its clear repeated song is often heard from shaded forest canopies, making it a familiar voice of Japan’s summer woodlands.

Category

Leaf Warblers, Songbirds, Summer Visitors

IUCN Status

Least Concern

Habitat

Broadleaf Forests, Mixed Woodlands, Mountain Forests, Wooded Valleys

Region

Japan in Summer, East Asia, Southeast Asia in Winter

Behavior

Canopy Foraging, Insect Feeding, Repeated Singing, Summer Migration

Population

Common Summer Visitor in Suitable Forest Habitat

センダイムシクイ Eastern Crowned Warbler

センダイムシクイは、夏鳥として日本へ渡ってくる小型で活発なムシクイの仲間です。 広葉樹林、混交林、山地の森林、谷沿いの林、静かな林縁などで見られます。 オリーブ緑色の背中、淡い下面、はっきりした淡色の眉斑、そして頭頂にある 淡い線が特徴で、似たムシクイ類と見分ける手がかりになります。

葉や枝の間をすばやく動きながら、昆虫、幼虫、クモ、小さな無脊椎動物などを 探して食べます。繁殖期には、林の樹冠や木陰から澄んだ繰り返しのさえずりが よく聞こえ、日本の夏の森林で親しまれる声のひとつです。

Category

ムシクイ類、鳴鳥、夏鳥

IUCN Status

低危険種

Habitat

広葉樹林、混交林、山地の森林、谷沿いの林、静かな林縁

Region

夏の日本、東アジア、冬は東南アジア

Behavior

樹冠で採食、昆虫食、繰り返すさえずり、夏の渡り

Population

適した森林環境では普通に見られる夏鳥