墾丁地區為台灣秋季日行性遷徙性猛禽主要觀察地點，墾丁國家公園管理處已進 行超過20 年之遷徙性猛禽監看。2004 年起開始委託台灣猛禽研究會執行研究計畫，並 於2008 年起增加春季過境猛禽調查。秋季調查期間為09/0~10/31，調查地點為墾丁社 頂自然公園的凌霄亭，調查時間為05:30~12:00，2 名調查員進行至少6.5 小時的調查。 記錄每日過境猛禽之時間、種類、數量、飛行方式等。結果2011 年秋季共記錄2 科15 種遷徙性猛禽，數量以赤腹鷹117,805 隻、灰面鵟鷹45,666 隻最多。赤腹鷹的過境期 自09/15 至10/17， 共33 日， 以9 月過境數量較多。本季過境期日數略高於2004 年~2011 年之平均日數26 日， 且有逐漸增長的趨勢。灰面鵟鷹的過境期為 10/10~10/20，共11 日。近年過境期日數，除了2010 年可能因颱風影響而較長外，其 他年間未見明顯差異。紀錄時間方面， 赤腹鷹於調查時間內均可觀察到， 以 06:00~08:00 的紀錄數量最多，佔總數量的49.9%；灰面鵟鷹的主要紀錄時段則為 05:00~07:00，佔總數量之67.7%。赤腹鷹及灰面鵟鷹的過境期，年間均有不同差異， 除族群量改變外，可能受到許多因子的綜合影響，可再深入探究。灰面鵟鷹近年族群 數量逐漸增加，赤腹鷹及東方蜂鷹則呈現下降的趨勢，但僅發生於近2~3 年，此現象 是否為正常年間變動，或有其他原因，還難以證實。其他遷移性猛禽則因紀錄的數量 較少，尚未見明顯的族群數量趨勢。

Count of migratory raptors was conducted at Kenting National Park in autumn 2011. The goal was to continue long-term monitoring of migratory raptors in this area , with emphasis on Gray-faced Buzzard (Butastur indicus) and Chinese Goshawk (Accipiter soloensis). Each day, 2 counters observed from 05:30 to 12:00 at She-Ding Nature Park. From September 1 to October 31, 15 species of migratory raptors were recorded including 45,666 Gray-faced Buzzards and 117,805 Chinese Goshawks. 90% of Chinese Goshawks passed Kenting in 33 days between September 15 and October 17, 7 days longer than the average 26 days since 2004. Daily peak passage hours were between 06:00 and 08:00, comprising 49.9% of all Chinese Goshawks. 90% of Gray-faced Buzzards passed Kenting between October 10 and October 20. Daily peak passage hours were between 05:00 to 07:00, comprising 67.7% of all buzzards. Population trends for different species were different since 2004. The Grey-faced Buzzards had increased while Chinese Goshawks and Oriental Honey-buzzards had decreased. These changes could be due to yearly population variation, weather impact on their routes and other factors that need future studies.