Pallas's leaf warbler
Phylloscopus proregulus (Pallas, 1811)
The pallas's leaf warbler (Phylloscopus proregulus) is a species in the family Phylloscopidae, order Passeriformes. Recorded adults weigh about 6 g. Its IUCN Red List status is Least Concern.

Quick facts about the pallas's leaf warbler
- Weight
- 6 gsrc for Weight
- Length
- Not recorded
- Lifespan
- Not recorded
- Diet
- Invertivoresrc for Diet
- Main food
- Not recorded
- Habitat
- forestsrc for Habitat
- Young per litter or clutch
- 4.9src for Young per litter or clutch
- Lifestyle
- Perchingsrc for Lifestyle
- Migration
- Migratorysrc for Migration
- Conservation status
- Least Concern (IUCN)src for Conservation status
- Countries on record
- Not recorded
Where does the pallas's leaf warbler live?
Not recorded
What is the pallas's leaf warbler?
Pallas's leaf warbler (Phylloscopus proregulus) 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.
Pallas's leaf warbler is one of the smallest Palearctic warblers, with a relatively large head and short tail. It has greenish upperparts and white underparts, a lemon-yellow rump, and yellow double wingbars, supercilia and central crown stripe. It is similar in appearance to several other Asian warblers, including some that were formerly considered to be subspecies of it, although its distinctive vocalisations aid identification.
The female builds a cup nest in a tree or bush, and incubates the four to six eggs, which hatch after 12–13 days. The chicks are fed mainly by the female and fledge when they are 12–14 days old; both parents then bring food for about a week. Pallas's leaf warbler is insectivorous, feeding on the adults, larvae and pupae of small insects and spiders. Birds forage in bushes and trees, picking items from leaves or catching prey in short flights or while hovering. The Pallas's leaf warbler has a large range, and its numbers are believed to be stable. It therefore is evaluated as of "least concern" by the International Union for Conservation of Nature (IUCN).
From the Wikipedia article “Pallas's leaf warbler” (en.wikipedia.org/w/index.php?title=Pallas%27s_leaf_warbler&oldid=1380578646), by Wikipedia contributors, licensed under CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0). This block is kept separate from our own text.
Is the pallas's leaf warbler endangered?
The pallas's leaf warbler is listed as Least Concern on the IUCN Red List: it is not currently at risk of extinction.
- LCLeast Concern
- NTNear Threatened
- VUVulnerable
- ENEndangered
- CRCritically Endangered
- EWExtinct in the Wild
- EXExtinct
Category via Wikidata (CC0). Find the full assessment on the IUCN Red List. See all Least Concern species. What the categories mean.
How is the pallas's leaf warbler classified?
- kingdomAnimalia
- phylumChordata
- classAves
- orderPasseriformes
- familyPhylloscopidae
- genusPhylloscopus
- SpeciesPhylloscopus proregulus (Pallas, 1811)
Synonyms Abrornis proregulus, Motacilla proregulus, Phylloscopus newtoni, Phylloscopus proregulus proregulus, Reguloides proregulus, Reguloides proregulus proregulus
Other names and names in other languages (62)
- Lemon-rumped warblerEnglish
- Pallas's leaf-warblerEnglish
- Pallas's warblerEnglish
- Pallas’s leaf warblerEnglish
- نقشارة بالاسArabic
- Кралчев певецBulgarian
- Puig-PallasBreton
- mosquiter reietóCatalan
- budníček zlatohlavýCzech
- Telor PallasWelsh
- Telorion PallasWelsh
- FuglekongesangerDanish
- GoldhähnchenlaubsängerGerman
- Goldhähnchen-LaubsängerGerman
- Goldhänchen-LaubsängerGerman
- ΝανοφυλλοσκόποςGreek
- RegolfiloskopoEsperanto
- regoleca filoskopoEsperanto
- Mosquitero de PallasSpanish
- kuld-lehelindEstonian
- Txio erregetxoBasque
- سسک گلPersian
- سسک پالاسPersian
- hippiäisuunilintuFinnish
- KongsljómariFaroese
- Pouillot de PallasFrench
- Ceolaire PallasIrish
- Ceolaire duilleabhairIrish
- Kiaulleyder PallasManx
- עלווית מלכילוניתHebrew
- zlatoglavi zviždakCroatian
- királyfüzikeHungarian
- KollsöngvariIcelandic
- Luì di PallasItalian
- カラフトムシクイJapanese
- Әсем сарықасKazakh
- 노랑허리솔새Korean
- PallasbliedervillchenLuxembourgish
- nykštukinė pečialindaLithuanian
- Sibīrijas ķauķītisLatvian
- Жирхэн дуучшувууMongolian
- pallas’ boszangerDutch
- Pallas' BoszangerDutch
- fuglekongesongarNorwegian Nynorsk
- świstunka złotawaPolish
- felosa-de-pallasPortuguese
- felosa-de-sobrancelha-douradaPortuguese
- Pitulice sprâncenatăRomanian
- Pitulice cu târtiță galbenăRomanian
- Корольковая пеночкаRussian
- GonagaslastavizarNorthern Sami
- kolibiarik králikovitýSlovak
- kraljičicaSlovenian
- паласов звиждакSerbian
- Palasov zviždakSerbian
- kungsfågelsångareSwedish
- นกกระจิ๊ดตะโพกเหลืองคิ้วเหลืองThai
- Çalıkuşu ÇıvgınıTurkish
- вівчарик золотомушковийUkrainian
- Chích hông vàngVietnamese
- 黃腰柳鶯Chinese
- 黄腰柳莺Chinese
Catalogue of LifeWikipediaiNaturalistTAXREFWikidataIUCN Red List
Relatives of the pallas's leaf warbler
Other species in the same genus Phylloscopus.

Common chiffchaff
Phylloscopus collybita

Willow warbler
Phylloscopus trochilus

Greenish warbler
Phylloscopus trochiloides

Yellow-browed warbler
Phylloscopus inornatus

Arctic warbler
Phylloscopus borealis

Dusky warbler
Phylloscopus fuscatus
ComparePallas's leaf warbler vs Common chiffchaffPallas's leaf warbler vs Willow warblerPallas's leaf warbler vs Greenish warblerPallas's leaf warbler vs Yellow-browed warbler
Common questions
Answered only where our data holds the answer.
How big is the pallas's leaf warbler?
An adult pallas's leaf warbler weighs 6 g, according to values recorded on Wikidata.
Is the pallas's leaf warbler endangered?
The pallas's leaf warbler is listed as Least Concern on the IUCN Red List, meaning it is not currently at risk of extinction.
What kind of animal is the pallas's leaf warbler?
The pallas's leaf warbler (Phylloscopus proregulus) belongs to the family Phylloscopidae in the order Passeriformes.
Sources and how to cite this page
Data as of 2026-11-11. How this page is put together.
- An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles · CC0 1.0 · E096-269
Myhrvold, N.P., Baldridge, E., Chan, B., Sivam, D., Freeman, D.L. & Ernest, S.K.M. (2015) An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96: 3109. https://doi.org/10.1890/15-0846R.1. Data: https://doi.org/10.6084/m9.figshare.3563457.v1 - AVONET: morphological, ecological and geographical data for all birds · CC BY 4.0 · v7
Tobias, J.A. et al. (2022) AVONET: morphological, ecological and geographical data for all birds. Ecology Letters 25: 581–597. https://doi.org/10.1111/ele.13898. Data: https://doi.org/10.6084/m9.figshare.16586228.v7 - Catalogue of Life eXtended Release · CC BY 4.0 · 2026-10-16 XR
Catalogue of Life (2026). Catalogue of Life eXtended Release, version 2026-10-16 XR. Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgzlf - Wikimedia Commons · per file (CC0 / public domain / CC BY green, CC BY-SA amber, anything else not displayed) · 2026-11-11
Wikimedia Commons contributors. Wikimedia Commons. https://commons.wikimedia.org (each file credited to its author under its own licence). - Wikidata · CC0 1.0 · 2026-11-11
Wikidata contributors. Wikidata. https://www.wikidata.org (data retrieved via the Wikidata Query Service). - Wikipedia (English) · CC BY-SA 4.0 · 2026-11-11
Wikipedia contributors. Wikipedia, The Free Encyclopedia. https://en.wikipedia.org (text under CC BY-SA 4.0; each block names its article and revision).
Embed a card for this animal on your own site
Copy this code. The card shows the photo with its credit, key facts and a link back to this page.
CreatureData. (2026). Pallas's leaf warbler (Phylloscopus proregulus). Retrieved from https://creaturedata.com/animals/pallass-leaf-warbler
“Pallas's leaf warbler (Phylloscopus proregulus).” CreatureData, 2026, https://creaturedata.com/animals/pallass-leaf-warbler.
@misc{pallass_leaf_warbler_2026,
title = {Pallas's leaf warbler (Phylloscopus proregulus)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/pallass-leaf-warbler},
note = {Data as of 2026-11-11}
}