Sakhalin Leaf Warbler

This species is defined as a rarity. Please submit your records of this species via our record submission page.

Scientific Name: Phylloscopus borealoides
Malay Name: Cekup-Daun Kaki Pudar Jepun
Chinese Name: 库页岛柳莺

Found from the Japanese Archipelago, Sakhalin to Kuril islands and winters to Southeast Asia


Size: 11.5 cm

Adult resembles Arctic Warbler but has dark greyish crown contrasting with olive-greenish mantle, warmish olive-brown rump and pale greyish pink legs and feet. Indistinguishable from the very similar looking Pale-legged Leaf Warbler visually (or oftentimes even in hand), and in the field it can only be told apart by its call (~5Khz instead of ~6Khz) or characteristic song.

Similar looking species: Arctic Warbler, Eastern Crowned Warbler, Pale-legged Leaf Warbler, Yellow-browed Warbler

Habitat: Forest.

Behaviour/Ecology: Usually forages for insects on the forest floor, sometimes climbing up low shrubs and vines to glean prey. May also be found in the mid-storey to canopy levels.

Local Status: Very rare migrant

Conservation Status: Least Concern (BirdLife International 2016)

Past accepted records in our database: Showing the most recent 10 records. See more on our database page.

Past records, bar chart (see more bar charts):


External Links:
Conservation Status: IUCN Red List Page
Photos: Oriental Bird Images
Sound Recordings: xeno-canto Link
Wikipedia Entry: Wikipedia Link
eBird Species page: eBird (Sakhalin Leaf Warbler)

BirdLife International. (2016). Phylloscopus borealoides. The IUCN Red List of Threatened Species 2016. Accessed on 19 December 2021

Hungnon, C., Khudamrongsawat, J., Manawattana, S., Pierce, A. J., & Round, P. D. (2017). Distinguishing between Sakhalin Leaf Warbler Phylloscopus borealoides and Pale-legged Leaf Warbler P. tenellipes on call. Forktail, 33, 77-80.

Robson, C. (2014). Field guide to the birds of South-East Asia (Second Edition). Bloomsbury Publishing, London.

Yap, F., Yong, D. L., Low, B. W., Lim, K. K., Foley, C., Cros, E., & Rheindt, F. E. (2014). First wintering record of the Sakhalin Leaf Warbler Phylloscopus borealoides in South-East Asia, with notes on vocalisations. BirdingASIA, 21, 76–81.