Caroline reed warbler
Acrocephalus syrinx (Kittlitz, 1833)
The caroline reed warbler (Acrocephalus syrinx) is a species in the family Acrocephalidae, order Passeriformes. Recorded adults weigh 32.2 g to 36.5 g. Its IUCN Red List status is Least Concern.

Quick facts about the caroline reed warbler
- Weight
- 32.2 g – 36.5 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
- 2src for Young per litter or clutch
- Lifestyle
- Terrestrialsrc for Lifestyle
- Migration
- Sedentarysrc for Migration
- Conservation status
- Least Concern (IUCN)src for Conservation status
- Countries on record
- Not recorded
Where does the caroline reed warbler live?
Not recorded
What is the caroline reed warbler?
The Caroline reed warbler or Caroline Islands reed warbler (Acrocephalus syrinx) is a species of Old World warbler in the family Acrocephalidae. It is found only on the Caroline Islands in Micronesia.
From the Wikipedia article “Caroline reed warbler” (en.wikipedia.org/w/index.php?title=Caroline_reed_warbler&oldid=1314063144), 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 caroline reed warbler endangered?
The caroline reed 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 caroline reed warbler classified?
- kingdomAnimalia
- phylumChordata
- classAves
- orderPasseriformes
- familyAcrocephalidae
- genusAcrocephalus
- SpeciesAcrocephalus syrinx (Kittlitz, 1833)
Synonyms Acrocephalus luscinia syrinx, Conopoderas syrinx, Sylvia syrinx
Other names and names in other languages (38)
- Caroline Islands reed warblerEnglish
- Caroline Islands reed-warblerEnglish
- Caroline Islands reed-warblerEnglish
- Caroline Islands reed-warblerEnglish
- Caroline reed-warblerEnglish
- Carolinian reed warblerEnglish
- Carolinian reed warblerEnglish
- Carolinian reed warblerEnglish
- boscarla de les illes CarolinesCatalan
- rákosník karolinskýCzech
- telor cyrs Ynysoedd CarolineWelsh
- Caroliner RørsangerDanish
- CoarolinerrørsangerDanish
- CarolinenrohrsängerGerman
- karolina kanbirdoEsperanto
- Carricero de las CarolinasSpanish
- karoliini roolindEstonian
- karoliinienkerttunenFinnish
- Rousserolle des CarolinesFrench
- livadni trstenjakCroatian
- karolina-szigeteki nádiposzátaHungarian
- Cannaiola delle CarolineItalian
- カロリンヨシキリJapanese
- karolininė nendrinukėLithuanian
- каролински трскарMacedonian
- CarolinenkarekietDutch
- karolinesangerNorwegian
- trzciniak atolowyPolish
- LimwehdiPohnpeian
- felosa-das-carolinasPortuguese
- Каролинская камышевкаRussian
- Каролинская камышовкаRussian
- trsteniarik karolínskySlovak
- karolinersångareSwedish
- Caroline Adası KamışçınıTurkish
- очеретянка каролінськаUkrainian
- 卡罗琳苇莺Chinese
- 加羅林島葦鶯Chinese
Relatives of the caroline reed warbler
Other species in the same genus Acrocephalus.

Great reed warbler
Acrocephalus arundinaceus

Common reed warbler
Acrocephalus scirpaceus

Sedge warbler
Acrocephalus schoenobaenus

Aquatic warbler
Acrocephalus paludicola

Marsh warbler
Acrocephalus palustris

Blyth's reed warbler
Acrocephalus dumetorum
CompareCaroline reed warbler vs Great reed warblerCaroline reed warbler vs Common reed warblerCaroline reed warbler vs Sedge warblerCaroline reed warbler vs Aquatic warbler
Common questions
Answered only where our data holds the answer.
How big is the caroline reed warbler?
An adult caroline reed warbler weighs 32.2 g – 36.5 g, according to values recorded on Wikidata.
Is the caroline reed warbler endangered?
The caroline reed 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 caroline reed warbler?
The caroline reed warbler (Acrocephalus syrinx) belongs to the family Acrocephalidae 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). Caroline reed warbler (Acrocephalus syrinx). Retrieved from https://creaturedata.com/animals/caroline-reed-warbler
“Caroline reed warbler (Acrocephalus syrinx).” CreatureData, 2026, https://creaturedata.com/animals/caroline-reed-warbler.
@misc{caroline_reed_warbler_2026,
title = {Caroline reed warbler (Acrocephalus syrinx)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/caroline-reed-warbler},
note = {Data as of 2026-11-11}
}