極北柳鶯
Arctic Warbler
Phylloscopus borealis
無危。春及秋季過境遷徙鳥。體型比黃眉柳鶯大。身長翼長，但尾相對較短。上體綠色，眉長黃色。上嘴深色，下嘴尖端深色而基部淺色。大多數只有一道白色翼帶，但個別例子會有兩道短翼帶。腹部灰白。叫聲為「tzick」聲。見於樹林上層活動。
Least Concern. Spring and Autumn Passage Migrant. Larger than Yellow-browed Warbler. A long-bodied, long-winged, apparently short tailed phylloscopus warbler. Green upperparts with long yellow supercilium. Dark upper mandible, lower mandible has dark tip and pale base. Usually one white wing bar but occasionally a second short one. Underparts greyish-white. Call a ‘tzick’. Arboreal.