EASTERN WARBLING-VIREO

August 16, 2025 Silcock & Jorgensen

Vireo gilvus Status: Common regular spring and fall migrant statewide. Common regular breeder east and east-central, uncommon west-central and west. Documentation: Specimen: UNSM ZM6789, 26 Apr 1901 Lancaster Co. Taxonomy: AOS split the former Warbling Vireo into two species based on a proposal by Cicero (2025) noting the two groups differ in several ways including […]

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WESTERN WARBLING-VIREO

Vireo swainsoni brewsteri Status: Uncommon regular spring and fall migrant west. Uncommon regular breeder w...