台灣大學校園領角鴞冬季繁殖觀察

Observations of Breeding of the Collared Scops Owl (Otus lettia) in Winter on the Campus of National Taiwan University, Taipei

鄭薏如(Yi-Ru Cheng)

《台灣猛禽研究》 3期 (2004/09) Pp. 1-7

https://doi.org/10.30121/RRT.200409.0001

摘要

自2003年11月至2004年3月於台灣大學校園共觀察到3窩領角鴞（Otus lettia）之幼鳥，推估其產卵時間分別在10初和11月中，不同於在中部山區森林所記錄的繁殖時間3、4及7月。從食繭、食殘與親鳥餵食行為觀察中，發現本區領角鴞的食物種類包括昆蟲、蛙類、鳥類及小型哺乳類，其中食殘分析所得以白頭翁（Pycnonotus sinensis）、紅鳩（Streptopelia tranquebarica）、玄鼠（Rattus rattus）和臭鼩（Suncus murinus）為主。此外，研究期間亦觀察到幼烏爬樹、威嚇及親鳥護衛等行為，並錄得成鳥叫聲5種和幼烏叫聲4種。

關鍵字

領角鴞 ； 繁殖 ； 冬季 ； 食性分析 ； 叫聲

並列摘要

Three nests of Collared Scops Owl (Otus lettia) were observed from November 2003 to March 2004 on the campus of National Taiwan University, Taipei, northern Taiwan. The estimated time of egg-laying was in early October to mid-November. This differs from the times recorded in forest environments of central Taiwan, which were in March, April, and July. Observations showed the food they consumed was diverse, including insects, frogs, birds, and small mammals. Results of the food residual analysis indicated that Chinese Bulbul (Pycnonotus sinensis), Red Collared-dove (Streptopelia tranquebarica), black rat (Rattus rattus), and house shrew (Suncus murinus) were predominant species. In addition, we observed various behaviors including a chick climbing up a tree, a threat display, and an adult providing protection, and also recorded 5 different adult calls and 4 different chick calls.

並列關鍵字

Collared Scops Owl ； Otus lettia ； breeding ； winter ； food analysis ； call