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 small forest sprite is forecast to undergo dramatic shifts in its breeding range across both the eastern and western parts of its range, according to Audubon's climate model. The model projects an 85 percent loss of current summer range by 2080, forcing the bird further north into Canada. Potential expansion of the winter range may help this species, but it remains to be seen as to whether the mature forests the species depends on will be available further north.
Note: This wren was recently split into two species, the western Pacific (T. pacificus) and eastern Winter (T. hiemalis). Using historic data, the Audubon climate model analyzed data for both species as the former Winter Wren (T. troglodytes).