Sakhalin Leaf Warbler (Phylloscopus borealoides)
Illustration redrawn by AI from a real photograph

Sakhalin Leaf Warbler

Phylloscopus borealoides Portenko, 1950

≈12 cmLength9.8 gWeight

It has a long white supercilium, a broad dark brown eyestripe, a pink base to the bill and pale pinkish-brown legs.

Busiest months: April and October · Most records: Thailand, China, Japan

Looks like Pale-legged Leaf Warbler

Least Concern

How to identify

Field marks

  1. Long white supercilium
  2. Broad dark brown eyestripe
  3. Pink base of the bill, extending onto lower mandible
  4. Pale pinkish-rufous legs

Voice

Vocalizations are lower in pitch than those of Pale-legged Leaf Warbler, but their pitch ranges overlap somewhat.

Similar species

Pale-legged Leaf Warbler
Pale-legged Leaf Warbler

This species may have slightly greener upperparts and lower-pitched vocalizations, but the pitch ranges of the two overlap.

Where and when it's recorded

Busiest months: April and October · Most records: Thailand, China, Japan

Sakhalin Leaf Warbler has been recorded at 249 of the 8,276 birding hotspots we track, in 8 countries and regions.

Records by month Northern Hemisphere

Where it's recorded most

  1. Khao Dinsor (Khao Dinso) / Chumphon Raptor CenterThailand212 records
  2. Nanhui DongtanChina164 records
  3. Wajima – Hegurajima (island)Japan141 records
More places
  1. Man Nai IslandThailand110 records
  2. Sakata – Tobishima (island)Japan109 records
  3. Matsu – DongyinChina90 records
  4. Niigata – Nishikaigan ParkJapan71 records
  5. H.M. Queen Sirikit ParkThailand66 records
  6. Phutthamonthon ParkThailand61 records
  7. Matsu – Dongyin Vegetable FarmChina60 records

Countries and regions with the most records

ThailandChinaJapanSingaporeSouth KoreaMalaysiaCambodiaMyanmar (Burma)

eBird records via GBIF up to 2024-12-31. A record means someone listed it; more records partly mean more birders, not more birds.

About

The Sakhalin leaf warbler (Phylloscopus borealoides) is a species of Old World warbler in the family Phylloscopidae.

Excerpt from Wikipedia, CC BY-SA 4.0 · authors · Read more on Wikipedia

Questions

How big is the Sakhalin Leaf Warbler?

The Sakhalin Leaf Warbler is about ≈12 cm long and weighs around 9.8 g.

Where does the Sakhalin Leaf Warbler live?

Its breeding range: Palearctic: Sakhalin (southeastern Russia) and southern Kuril Islands, Hokkaido and Honshu (northern, central Japan). It is most often recorded in Thailand, China and Japan.

When is the best time to see the Sakhalin Leaf Warbler?

At the hotspots we track, it is recorded most in April and October (Northern Hemisphere).

Is the Sakhalin Leaf Warbler endangered?

The IUCN Red List classifies the Sakhalin Leaf Warbler as Least Concern.

What does the Sakhalin Leaf Warbler eat?

Main food: Insects & other invertebrates.

What family is the Sakhalin Leaf Warbler in?

It belongs to the family Leaf Warblers (Phylloscopidae), order Passerines (Passeriformes).

At a glance

Length
≈12 cm
Weight
9.8 g
Habitat
Forest
Diet
Insects & other invertebrates
Lifestyle
Perches in trees
Migration
Migratory
Conservation
Least Concern
More measurements
Wing
62 mm
Tail
51 mm
Bill
12 mm
Tarsus
18 mm

Averages from the AVONET dataset; length from field guides where available.

Range

Palearctic: Sakhalin (southeastern Russia) and southern Kuril Islands, Hokkaido and Honshu (northern, central Japan)

Breeding range, IOC World Bird List 15.2

Classification

Order
Passerines Passeriformes
Family
Leaf Warblers Phylloscopidae
Genus
Phylloscopus

Other birds in the genus Phylloscopus

Wood WarblerWood WarblerPhylloscopus sibilatrixWestern Bonelli's WarblerWestern Bonelli's WarblerPhylloscopus bonelliEastern Bonelli's WarblerEastern Bonelli's WarblerPhylloscopus orientalisBuff-barred WarblerBuff-barred WarblerPhylloscopus pulcherAshy-throated WarblerAshy-throated WarblerPhylloscopus maculipennisHume's Leaf WarblerHume's Leaf WarblerPhylloscopus humeiYellow-browed WarblerYellow-browed WarblerPhylloscopus inornatusBrooks's Leaf WarblerBrooks's Leaf WarblerPhylloscopus subviridisChinese Leaf WarblerChinese Leaf WarblerPhylloscopus yunnanensisLemon-rumped WarblerLemon-rumped WarblerPhylloscopus chloronotusSichuan Leaf WarblerSichuan Leaf WarblerPhylloscopus forrestiGansu Leaf WarblerGansu Leaf WarblerPhylloscopus kansuensis
Sakhalin Leaf Warbler

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