Pallas's Leaf Warbler

Phylloscopus proregulus

Least Concern · IUCN Red List

LCLeast ConcernInvertebratesForestDomed nestTiny · 6 g

What the Pallas's Leaf Warbler sounds like

Sonogram of the Pallas's Leaf Warbler: time runs left to right, pitch bottom to top, and the brighter the mark the louder the sound.
Recorded by Sonothèque ADVL · Song · Beauvoir, Manche, Normandie, France · CC0 · via xeno-canto

ID tip

Pallas's leaf warbler is one of the smallest warblers, with a large head and short tail. At 9–10 centimetres (3.5–3.9 in) long and 4–7 grams (0.14–0.25 oz) in weight, it is slightly smaller than a yellow-browed warbler and barely any larger than a goldcrest. It has greenish upperparts and white underparts, but is very striking, with prominent pale yellow double wingbars on the wing covert feathers, bold yellow supercilia and central crown stripe, and a lemon-yellow rump.

Text from Wikipedia, licensed CC BY-SA 4.0.

When to see the Pallas's Leaf Warbler

One bar for each month. Filled bars are the 8 months with records; pale bars are months with none. The wide bar is October, the month with the most records.

Where to see the Pallas's Leaf Warbler

Regular rangeRare visitor

The map shades 37 countries with regular records, and 9 more in a lighter tone where the bird turns up only as a stray. Everything unshaded has no records. Countries are listed below the map.

Recorded as a rare visitor in Portugal, Ireland, India, Czechia, United States, Kyrgyzstan, Romania, Slovenia, Azerbaijan.

About the Pallas's Leaf Warbler

Pallas's leaf warbler or Pallas's warbler is a bird that breeds in mountain forests from southern Siberia east to northern Mongolia and northeast China. It is named after the German zoologist Peter Simon Pallas, who first formally described it. This leaf warbler is strongly migratory, wintering mainly in south China and adjacent areas of southeast Asia, although in recent decades increasing numbers have been found in Europe in autumn.

Text adapted from Wikipedia, licensed CC BY-SA 4.0.

Easily confused with

Side by side: Iberian Chiffchaff vs Pallas's Leaf Warbler

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