Western Warbling Vireo
Western Warbling Vireo (<em>Vireo swainsoni</em>) is a species of Vireos, Greenlets, Shrike-babblers (<em>Vireonidae</em>) in the order Perching Birds (Passerines).
Overview
Western Warbling Vireo (Vireo swainsoni) is a species of Vireos, Greenlets, Shrike-babblers (Vireonidae) in the order Perching Birds (Passerines).
Scientific Classification
Genus: Vireo; binomial: Vireo swainsoni; authority: Baird, SF, 1858.
Distribution
Breeding range: the Nearctic and Middle America.
Conservation Status
This taxon is listed as Extant (living) in the IOC World Bird List.
Remarks
Polytypic Western Warbling Vireo Vireo swainsoni is split from monotypic Eastern Warbling Vireo V. gilvus based on vocalizations, molt and migration strategies, habitat and low levels of hybridization in a narrow hybrid zone (Carpenter et al. 2022; Mlodinow et al. 2025).

