台9線蘇花公路沿線猛禽資源調查

Species and Abundance Survey of Raptors along Suhua Highway

自2012年3月至2013年2月於台9線蘇花公路蘇澳至大清水段沿線進行猛禽群聚調查。猛禽群聚共記錄到3科11種日行性猛禽及1科2種夜行性猛禽。日行性猛禽中有4種為留鳥，分別是林鵰（Ictinaetus malayensis）、蛇鵰（Spilornis cheela hoya）、鳳頭蒼鷹（Accipiter trivirgatus）及台灣松雀鷹（A. virgatus fuscipectus）；6種為遍境鳥或候鳥，分別是赤腹鷹（A. soloensis）、灰面鵟鷹（Butastur indicus）、鵟（Buteo buteo）、魚鷹（Pandion haliaetus）、遊隼（Falco peregrinus）及紅隼（F. tinnunculus）。另外一種東方蜂鷹（Pernis ptilohynchus），則可能有留鳥或候鳥2種型態。2種夜行性猛禽皆為留鳥，分別是領角鴞（Otus lettia）及黃嘴角鴞（O. spilocephalus）。蛇鵰為日行性留鳥猛禽中最普遌的物種，在9個猛禽調查樣點中皆可發現。9個研究樣點中以觀音及漢本樣點的猛禽物種多樣性9種最高。以猛禽在各季節的多樣性而言，秋季猛禽的物種多樣性11種最高。

We investigated species and abundance of raptors along Suhua Highway from March 2012 to February 2013. Eleven species of diurnal raptors and two nocturnal raptors were recorded from nine study sites along Suhua Highway. There were four resident species, specifically the Indian Black Eagle (”Ictinaetus malayensis”), Crested Serpent Eagle (”Spilornis cheela hoya”), Crested Goshawk (”Accipiter trivirgatus”) and Besra (”A. virgatus fuscipectus”); and six migration species, specifically the Chinese Goshawk (”Accipiter soloensis”), Grey-faced Buzzard (”Butastur indicus”), Common Buzzard (”Buteo buteo”), Osprey (”Pandion haliaetus”), Peregrine Falcon (”Falco peregrinus”) and Common Kestrel (”F. tinnunculus”). The Oriental Honey Buzzard (”Pernis ptilohynchus”) may be considered as either a resident species or migration species. The two nocturnal raptors are both resident species, specifically the Collared Scops Owl (”Otus lettia”) and Mountain Scops Owl (”O. spilocephalus”). The Crested Serpent Eagle is the most common diurnal raptor, as it was recorded in all study sites. The diversity of raptor at Guanyin site and Hanben site were the highest among all of the sites. In terms of seasonal changes, raptor diversity was high during autumn.