---
title: "Lesser Swamp Warbler"
description: "Acrocephalus gracilirostris — Birds. The lesser swamp warbler or Cape reed warbler (Acrocephalus gracilirostris) is an Old World warbler in the genus Acrocephalus."
canonical: https://animalchecklist.com/animal/lesser-swamp-warbler
last_updated: 2026-09-20
---

# Lesser Swamp Warbler

> Acrocephalus gracilirostris — Birds. The lesser swamp warbler or Cape reed warbler (Acrocephalus gracilirostris) is an Old World warbler in the genus Acrocephalus.

- Scientific name: *Acrocephalus gracilirostris*
- Category: `birds` (Birds)
- Habitats: `freshwater` (Lakes & rivers)
- iNaturalist observations: 1729
- Wikidata: [Q3727635](https://www.wikidata.org/wiki/Q3727635)
- iNaturalist taxon: [116798](https://www.inaturalist.org/taxa/116798)

## Names

- en: Lesser Swamp Warbler
- de: Kaprohrsänger
- es: Carricero Picofino
- fr: Rousserolle à bec fin
- nl: Kaapse rietzanger
- pt: Rouxinol-pequeno-dos-pântanos
- pl: Trzciniak jasnobrewy

## Countries with the most observations

ZA (1423), NA (27), TZ (14), MW (10), ET (9), BW (8), KE (8), ZM (7), ZW (6), UG (4), AO (3)

## Summary

The lesser swamp warbler or Cape reed warbler (Acrocephalus gracilirostris) is an Old World warbler in the genus Acrocephalus. It is sparsely present across sub-Saharan Africa, a common species of reedbeds in standing water.

Text: Wikipedia (en), CC BY-SA 4.0 — https://en.wikipedia.org/wiki/Lesser_swamp_warbler

## Photo

![Lesser Swamp Warbler](https://animalchecklist.com/img/animals/lesser-swamp-warbler/medium.jpg)

Photo: Ben Keen · CC0 · inaturalist — https://www.inaturalist.org/observations/190315412

## Machine access

`GET https://animalchecklist.com/api/v1/animals/lesser-swamp-warbler?lang=en` — see [openapi.json](https://animalchecklist.com/openapi.json).