---
title: "Viréo de Swainson"
description: "Vireo swainsoni — Oiseaux. The warbling vireo (Vireo gilvus) is a small North American songbird."
canonical: https://animalchecklist.com/fr/animal/western-warbling-vireo
last_updated: 2026-09-20
---

# Viréo de Swainson

> Vireo swainsoni — Oiseaux. The warbling vireo (Vireo gilvus) is a small North American songbird.

- Scientific name: *Vireo swainsoni*
- Category: `birds` (Oiseaux)
- Habitats: `forest` (Forêt)
- iNaturalist observations: 11417
- iNaturalist taxon: [1652206](https://www.inaturalist.org/taxa/1652206)

## Names

- en: Western Warbling Vireo
- es: Vireo gorjeador occidental
- fr: Viréo de Swainson

## Countries with the most observations

US (7035), CA (1458), MX (1117)

## Summary

The warbling vireo (Vireo gilvus) is a small North American songbird.
Its breeding habitat is open deciduous and mixed woods from Alaska to Mexico. It often nests in widely spaced trees, often cottonwood or aspen, along streams or rivers. It migrates to Mexico and Central America.
Measurements:

Length: 12–13 cm (4.7–5.1 in)
Wingspan: 22 cm (8.7 in)
Weight: 10–16 g (0.35–0.56 oz)
They are mainly olive-grey on the head and upperparts with white underparts; they have brown eyes and the front of the face is light. There is a white supercilium. They have thick blue-grey legs and a stout bill. Western birds are generally…

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

## Photo

![Viréo de Swainson](https://animalchecklist.com/img/animals/western-warbling-vireo/medium.jpg)

Photo: Dario Taraborelli · CC0 · inaturalist — https://www.inaturalist.org/observations/58571086

## Machine access

`GET https://animalchecklist.com/api/v1/animals/western-warbling-vireo?lang=fr` — see [openapi.json](https://animalchecklist.com/openapi.json).