When ornithologists shift a species from *Tachyphonus* to *Chrysothlypis*, what is the primary evolutionary justification?

Answer

New evidence suggests a closer common ancestry with species in the destination genus

The movement of a species between genera, such as the historical reassignment of this tanager from *Tachyphonus* to *Chrysothlypis*, is fundamentally driven by evolving phylogenetic understanding. When such a reassignment occurs, it signifies that accumulated evidence—often molecular data analyzed recently, but sometimes morphology—indicates a much closer evolutionary kinship between the transferred species and the other members already residing in the destination genus (*Chrysothlypis*) than the species remaining in the original genus (*Tachyphonus*). This process reflects the continuous refinement of the tree of life based on updated ancestral relationship data.

When ornithologists shift a species from *Tachyphonus* to *Chrysothlypis*, what is the primary evolutionary justification?
taxonomybirdclassificationsciencetanager