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大盤尾  Greater racket-tailed drongo | by Hiyashi Haka
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大盤尾 Greater racket-tailed drongo

學名: Dicrurus paradiseus

英名: Greater racket-tailed drongo

Family: Dicruridae (卷尾科), Length: 55-65 cm.

雄成鳥通體黑色,具紫藍色金屬閃光;頭頂額羽發達成簇狀羽冠;最外側一對尾羽特延長,中部羽幹部分裸出,其末端的外翈較內翈顯著增大,形成“盤狀尾”。棲息於熱帶地區的雨林及季雨林中,常單獨或成對活動,常停息在空曠處的孤樹上,飛行時拖著一條長尾,做波浪式飛行,姿態優美,鳴聲亦清脆悅耳。

雌成鳥類似雄鳥但體型稍小;羽稍呈黑褐色且金屬閃光較弱。幼鳥體羽顯然呈黑褐色,光澤不甚顯現;頭部簇狀冠羽短而狹窄,胸部羽及尾下覆羽具灰白色端緣;翅下覆羽及腋羽暗褐黑色,羽端灰白斑大而顯著。

The greater racket-tailed drongo is a medium-sized Asian bird which is distinctive in having elongated outer tail feathers with webbing restricted to the tips. They are conspicuous in the forest habitats often perching in the open and by attracting attention with a wide range of loud calls that include perfect imitations of many other birds. These drongos will sometimes steal insect prey caught or disturbed by other foragers in the flock.

 

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Uploaded on May 16, 2016