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.
In summer, much of the continent’s moist, broad-leafed forests are home to the American Redstart. It searches for insects by fluttering at the tips of braches and even by fly-catching, when it flashes the orange patches in its wings and tail. American Redstarts are highly migratory, so they may be well positioned to take advantage of newly suitable areas. In particular, large swaths of Alaska, the Yukon, and the Northwest Territories could become suitable for breeding—but only if the plant and insect communities can also follow the shift in climate, and redstarts follow these shifts.