Family Leaf-warblers (Phylloscopidae)

Least Concern

Sakhalin Leaf-warbler (Phylloscopus borealoides)


French: Pouillot du Japon German: Sachalinlaubsänger Spanish: Mosquitero borealoide

Phylloscopus tenellipes borealoides


, 1950,

Kunashir, southern Kuril Islands, Russia


In the past considered conspecific with P. tenellipes, but song distinct and also exhibits some small plumage differences. Monotypic.


Sakhalin, S Kuril Is and Japan (mainly Hokkaido and Honshu); non-breeding Ryukyu Is and possibly Malay Peninsula (recently recorded wintering in Singapore)#R.

Descriptive notes

11–12 cm; 10·7 g. A medium-sized leaf-warbler with long creamy-white supercilium and broad dark brown eyestripe. Crown and upperparts, including upperwing-coverts, are... read more


Call a soft “tyu” and louder whistled “heep” or “peet”. Song a... read more


Forest clearings, glades and groves of trees; in C Japan occurs in montane mixed forest and... read more

Food and feeding

No information.


May and Jun. Nest in tree stump, or on ground under overhanging bank or beneath tree root. Clutch 4–6 eggs; incubation period 14 days... read more


Migratory. Leaves breeding grounds between Aug and Sept or early Oct, moving to Ryukyu Is;... read more

Status and conservation

Not globally threatened. Locally common breeding summer visitor to Japan.

Recommended citation

Clement, P. & de Juana, E. (2019). Sakhalin Leaf-warbler (Phylloscopus borealoides). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from on 22 August 2019).