"Solitary Vireo" is a collective term for certain vireos. These were formerly believed to make up a single species Vireo solitarius, but are now treated as three allopatric species:
- Cassin's Vireo, Vireo cassinii - west of the Rocky Mountains from southwestern Canada to California
- Plumbeous Vireo, Vireo plumbeus - USA east of the Rocky Mountains from southwesternmost Montana to western Mexico
- Blue-headed Vireo, Vireo solitarius proper - Canada east of the Rocky Mountains to northeastern USA
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Plumbeous Vireo on nest
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Blue-headed Vireo
Famous quotes containing the word solitary:
“But for my part, I preferred the solitary dwelling.”
—Henry David Thoreau (1817–1862)