Old World Warblers (Sylviidae)

Sakhalin Leaf-warbler (Phylloscopus borealoides) - HBW 11, p. 664

French: Pouillot du Japon German: Portenkolaubsänger Spanish: Mosquitero Japonés
Other common names: Japanese Pale-legged Willow-warbler

Taxonomy: Phylloscopus tenellipes borealoides Portenko, 1950, Kunashir, southern Kuril Islands, Russia.
Has been considered conspecific with P. tenellipes, but vocally distinct. Monotypic.

Distribution: Breeds Sakhalin I, S Kuril Is and Japan (mainly Hokkaido and Honshu); non-breeding Ryukyu Is, possibly also Indochina.