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.
This species is a common breeder in coniferous forests of northwestern North America. Audubon's climate model projects a 63 percent loss of current summer range by 2080, with some potential expansion northward during that season. Some of the newly appropriate climate space will be on Arctic tundra in Canada, meaning the Townsend’s Warbler is likely to face some trouble in terms of feasible nesting habitat. The model shows the U.S. winter population potentially expanding and shifting east into Arizona and Texas.