Assertion: blue headed vireo | /r/HasProperty | lumped as a solitary vireo
Facets:
value: with the more western plumbeous
type: OTHER
value: with cassin's vireos
type: OTHER
value: formerly
type: TEMPORAL
Source sentences:
text: Formerly lumped as a "Solitary Vireo" with the more western Plumbeous and Cassin's vireos, it is now considered a separate species.