While walking near Taipei 101, I actually heard the call of the Grey Treepie before I even spotted it in the trees. Its call is so distinct and powerful that I was able to notice it despite the bustling, noisy streets.
The Grey Treepie (Dendrocitta formosae) is a largely arboreal bird, meaning it spends the vast majority of its life high in the tree canopy. Both males and females are similar in appearance, featuring a thick, slightly curved beak. Their plumage is a sophisticated blend of grey, black, and brown. They are easily identified by their very long tails, a striking white rump (waist), and prominent white spots on their wings.
These birds are omnivorous, feeding on a wide variety of insects, seeds, and fruits. While they usually move in small family groups, they are known to gather in much larger flocks during the autumn months. Their acrobatic movements as they hop through branches make them a joy to watch for any urban birdwatcher.
走在台北 101 附近，我猜我可能是聽到灰樹鵲的叫聲才抬頭往樹上看。它的叫聲非常獨特而響亮，即使在熙熙攘攘、嘈雜的街道上，我也能注意到它。灰樹鵲俗稱山八哥、咖咖仔。
灰樹鵲主要是樹棲的，這意味著它們一生中絕大部分時間都生活在樹冠高處。䧳雄同型，嘴粗厚略彎曲。全身大致灰、黑、棕褐三色搭配。灰樹鵲很容易辨認，它們擁有非常長的尾巴、腰白，翼有白斑。
它是雜食性鳥類，以各種昆蟲、種子和水果為食。平時成小群活動，秋季則有大族群聚集。。它們在樹枝間跳躍的雜技動作，令所有城市觀鳥愛好者都賞心悅目。
Notes 筆記
- The Grey treepie, also known as the Himalayan treepie, (Dendrocitta formosae) is an Asian treepie, a medium-sized and long-tailed member of the crow family.
- The grey treepie is largely arboreal. They spend most of their life in trees. They are widely distributed along the foothills of the Himalayas in the Indian Subcontinent and extending into Indochina, southern mainland China and Taiwan.
- Grey treepies are omnivorous birds mostly thriving among dense foliage and in forests. It eats a wide range of insects and other invertebrates, berries, nectar, grain and other seeds, and also small reptiles, eggs and nestlings. They sometimes take part in mixed species flocks with laughingthrushes.
- The voice is described as harsh and grating. Its call is very easy to attract attention, in addition to the frequent grating k-r-r-r-r sound, other melodious notes such as tiddly-aye-kok, ko-ku-la sound that can travel far through the woods.
- 灰樹鵲，又稱喜馬拉雅樹鵲（Dendrocitta formosae）俗稱山八哥、咖咖仔，是亞洲樹鵲，中型長尾的烏鴉科。
- 灰樹鵲主要是樹棲的，一生大部分的時間都在樹上活動。牠們分佈於印度次大陸喜馬拉雅山麓，並延伸至中南半島、中國大陸南部和台灣。
- 灰樹鵲是雜食性鳥類，主要在茂密的樹葉和森林中繁衍生息。牠吃各種各樣的昆蟲和無脊椎動物、漿果、花蜜、穀物和種子，也吃小型爬行動物、蛋和雛鳥。牠們有時會與噪鹛混在一起。
- 牠發出的聲音刺耳。牠的叫聲很容易吸引人的注意，除了常聽到嘎嘎嘎嘎的急促聲，另一種嘎哩歸的鳴叫聲帶有奇妙又明亮的金屬音，能穿透樹林傳得很遠。
References 參考資料
- Wikipedia: Grey treepie
- 維基百科: 樹鵲
- 臺灣環境資訊協會: 灰樹鵲
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