Arctic Warbler

, Ueda, K., Irestedt, M., Björklund, M., and Olson, U. (2011). The Arctic Warbler Phylloscopus borealis– three anciently separated cryptic species revealed

Warbler（英语：Yellow-browed Warbler）) A Phylloscopus humei (Hume's Warbler（英语：Hume's Warbler）) A 極北柳鶯 - Phylloscopus borealis (Arctic Warbler（英语：Arctic Warbler）) A 暗绿柳莺

lanceolata (Lanceolated Warbler) * 褐色柳鶯 - Phylloscopus fuscatus (Dusky Warbler) * 極北柳鶯 - Phylloscopus borealis (Arctic Warbler) * 灰蓝蚋莺 - Polioptila caerulea

鶯科 Sylviidae 極北柳鶯 - Phylloscopus borealis ( Arctic Warbler) 短翅樹鶯 - Cettia diphone ( Japanese Bush Warbler) 棕扇尾鶯 - Cisticola juncidis ( Zitting Cisticola)

borealis（Arctic Warbler）※冬候鳥 庫頁島柳鶯 - Phylloscopus borealoides（Sakhalin leaf warbler）※過境鳥 栗頭鶲鶯 - Phylloscopus castaniceps（Chestnut-crowned warbler）※迷鳥 克氏冠紋柳鶯