---
title: "Chestnut-sided Warbler"
description: "Setophaga pensylvanica — Birds. The chestnut-sided warbler (Setophaga pensylvanica) is a New World warbler."
canonical: https://animalchecklist.com/animal/chestnut-sided-warbler
last_updated: 2026-09-20
---

# Chestnut-sided Warbler

> Setophaga pensylvanica — Birds. The chestnut-sided warbler (Setophaga pensylvanica) is a New World warbler.

- Scientific name: *Setophaga pensylvanica*
- Category: `birds` (Birds)
- Habitats: `forest` (Forest)
- iNaturalist observations: 25711
- Wikidata: [Q27075922](https://www.wikidata.org/wiki/Q27075922)
- iNaturalist taxon: [145239](https://www.inaturalist.org/taxa/145239)

## Names

- en: Chestnut-sided Warbler
- de: Gelbscheitelwaldsänger
- es: Chipe Flancos Castaños
- fr: Paruline à flancs marron
- it: Dendroica fianchicastani
- pt: Mariquita-de-flancos-castanhos
- pl: Lasówka rdzawoboczna

## Countries with the most observations

US (13921), CA (6239), CR (1778), MX (570), PA (220), HN (186), NI (106), BZ (47), GT (39), CO (11), EC (6), PR (4)

## Summary

The chestnut-sided warbler (Setophaga pensylvanica) is a New World warbler. They breed in eastern North America and in southern Canada westwards to the Canadian Prairies. They also breed in the Great Lakes region and in the eastern United States.

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

## Photo

![Chestnut-sided Warbler](https://animalchecklist.com/img/animals/chestnut-sided-warbler/medium.jpg)

Photo: Chrissy McClarren and Andy Reago · CC0 · inaturalist — https://www.inaturalist.org/observations/88036143

## Machine access

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