Assertion: vireo | /r/Synonym | the solitary vireo
Facets:
value: formerly
type: DEGREE
Source sentences:
text: This vireo was known as the Solitary Vireo until genetic studies determined that it was in fact three species.
text: The Cassin's Vireo (Vireo cassinii) was formerly known as the Solitary Vireo and was recently split into three separate species by American ornithologists: Cassin's, Plumbeous, and Blue-headed Vireos.