"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:
“A solitary traveler whom we saw perambulating in the distance loomed like a giant. He appeared to walk slouchingly, as if held up from above by straps under his shoulders, as much as supported by the plain below. Men and boys would have appeared alike at a little distance, there being no object by which to measure them. Indeed, to an inlander, the Cape landscape is a constant mirage.”
—Henry David Thoreau (1817–1862)