本研究自2010/10/09~10/17 共計9 日在台東縣蘭嶼鄉4 個調查點進行遷移性猛禽 調查，結果共記錄2 科6 種6,478隻遷移性猛禽，分別為灰面鵟鷹（Butastur indicus）6,433 隻、赤腹鷹（Accipiter soloensis）32 隻、魚鷹（Pandion haliaetus）8 隻、遊隼（Falco peregrinus）2 隻、紅隼（Falco tinnunculus）2 隻、燕隼（Falco subbuteo）1 隻。灰面鵟鷹 在蘭嶼的調查紀錄比起歷年來在台東樂山的紀錄數量多出甚多，再加上宮古島與台灣 本島、蘭嶼的距離相差無幾，因此推論來自宮古島的灰面鵟鷹以經過蘭嶼為主要的遷 移路線。本研究為初次到蘭嶼進行遷移性猛禽的研究調查，希望未來能推動更廣泛的 遷移猛禽全面調查，釐清遷移性猛禽在台東的遷移狀況。

This report provides the results of autumn raptor migration survey in Lanyu Island, Taitung, executed in 4 sites during the period 2010/10/09~10/17. After 9 day’s survey 6 species 6,478 migratory raptors were recorded: 6,433 Grey-faced Buzzards (Butastur indicus), 32 Chinese Goshawks (Accipiter soloensis), 8 Ospreys (Pandion haliaeetus), 2 Peregrines (Falco peregrinus), 2 Common Kestrels (Falco tinnunculus) and 1 Eurasian Hobby (Falco subbuteo). The number of Grey-faced Buzzards was much higher than the previous years’ average in Yaoshang, Taitung. Due to the fact that the distance between Miyako-jima, Taiwan and Miyako-jima, Lanyu are similar, we concluded that the Grey-faced Buzzards departed from Miyako-jima aim to Lanyu instead of Taiwan. This survey is the first autumn raptor migration survey in Lanyu ever. We hope to continue and expand such survey in the future so that we could understand the overall raptor migration situation in Taitung county more thoroughly.