松雀鷹在人類活動頻繁環境下的繁殖案例

A Case of a Breeding Besra (Accipiter virgatus) near Human Eenvironment

林秀麗(Hsiu-Li LlN)

《台灣猛禽研究》 1期 (2003/09) Pp. 46-50

https://doi.org/10.30121/RRT.200309.0006

摘要

2003年4－7月間在台北盆地邊緣觀察一個松雀鷹（Accipiter virgatus)巢的繁殖。該巢環境類似小公園，人類活動頻繁。巢位於香楠樹頂，高約13m，離步道僅20m，且可直視來往民眾。3隻幼烏於5月中孵出，7月初順利離巢擴散。經收集松雀鷹所拔除或吃剩的鳥類羽毛及殘骸，分析共得67隻鳥，所能鑑別的6種鳥種為家燕、白頭翁、麻雀、紅鳩、綠繡眼、紅嘴黑鵯，全部都是平地城鎮與公園極普遍的鳥種，可知松雀鷹可以在人類聚落環境下適應良好。食物中以家燕的數最居冠，可能是家燕近年來在台北地區的繁殖數量激增，大量剛離巢的幼鳥成為松雀鷹最容易到手的獵物。食物鳥種中很少有森林鳥種，顯示松雀鷹確有自森林生態系轉而趨近人類聚落生態系的潛力。曾目擊獵食蝙蝠，為過去所未知的食物紀錄。巢區內有領角鴞（Otus lettia）共域活動，但此兩種猛禽能和平共處。

關鍵字

松雀鷹 ； 繁殖 ； 食物 ； 人類環境

並列摘要

In April to July 2003, a Besra nest in a hill forest of a Taipei suburb was observed. The nest was only 20m from a path in a park which was close to a human community. Three fledglings were hatched in the middle of May, and all grew well until they dispersed in early July. By collecting and analyzing to 67 individual birds. Excluding 11 uncertain birds, 56 individuals were successfully identified to 6 species: Barn Swallow(Hirundo rustica), Chinese Bulbul(Pycnonotus sinensis), Tree Sparrow(Passer montanus), Red Turtle Dove(Streptopelia tranquebarica), All 6 species are very com- mon birds around human environments such as plains and towns. This indicates that the Besra not only breeds near human environments but also uses food resource from such ecosystems very well. The Barn Swallow was the most numerous food species because it has a rapidly increasing breeding population in the Taipei area; thus their numerous young fledglings are easy prey for the Besra A bat is a new food item record for the Besra in Taiwan. Collared Scops Owl(Otus lettia) coexists in the same area, but no interspecific predation between these 2 raptors was observed.

並列關鍵字

Besra ； Breeding ； food item ； human environment