DISCUSSION
In concordance with previously described habitat (Bangs, 1918) and
morphological (Sprunt, Jr., 1953) differences, we provide strong
evidence that black-throated green warblers breeding along the southern
Atlantic Coastal Plain of the United States are genomically distinct
from the nominate subspecies found throughout much of the forested
portions of eastern North America. As such, this isolated population is
worthy of classification as a true subspecies and thus deserves
conservation and management efforts required to sustain its persistence.