Phylloscopus tenellipes
Family: Leaf Warblers · Status: Vagrant · Size: 11.5 cm · Conservation: Least Concern
Breeds from North Korea to southeast Russia, wintering to Southeast Asia. Precise wintering range rather unclear.
Resembles Arctic Warbler but has a dark greyish crown contrasting with olive-greenish mantle, warmish olive-brown rump and pale greyish-pink legs and feet. Visually indistinguishable from Sakhalin Leaf Warbler; separable in the field only by call (~6 kHz vs ~5 kHz) or song.
Forest.
Forages for insects on the forest floor; also climbs low shrubs and vines, and occurs in the mid-storey to canopy.