Solitary vireo may refer to:
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Cassin's vireo
Cassin's vireo (''Vireo cassinii'') is a small North American songbird, ranging from southern British Columbia in Canada through the western coastal states of the United States. This bird migrates, spending the winter from southern Arizona (th ...
, ''Vireo cassinii'', endemic west of the Rocky Mountains from southwestern Canada to California, United States
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Plumbeous vireo
The plumbeous vireo (''Vireo plumbeus'') is a small North American songbird, ranging from far southeastern Montana and western South Dakota south to the Pacific coast of Mexico, including the extreme southern regions of Baja California Sur. It is ...
, ''Vireo plumbeus'', endemic east of the Rocky Mountains from southwestern Montana, United States to western Mexico
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Blue-headed vireo
The blue-headed vireo (''Vireo solitarius'') is a Neotropical migrating song bird found in North and Central America. There are currently two recognized subspecies that belong to the blue-headed vireo. It has a range that extends across Canada an ...
, ''Vireo solitarius'' proper, endemic to Canada east of the Rocky Mountains to northeastern United States
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