The darker the color, the more favorable the climate conditions are for survival. The outlined areas represent approximate current range for each season. More on reading these maps.
During migration or in summer, the Black-throated Green Warbler is a common sight across most of eastern North America. While the Audubon climate model predicts an increase in appropriate summer area, an almost total shift in available climate space leaves only 3% of the current available. The Black-throated Green Warbler will have to adapt very quickly to conditions in a completely new breeding range if the projection is borne out. The species is highly migratory, which is an advantage, but much of the new space is far to the west, which may prove a challenge for this largely eastern species.