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.
Most rocky hillsides in the Southwest have a pair of Rufous-crowned Sparrows hopping about somewhere. This is a resident (non-migratory) species, so interpreting the Audubon climate model’s decoupling of its summer and winter ranges is challenging to interpret, but this species may be in serious trouble. The vast majority of climate space, in both summer and winter, is forecast to radically shift northward. An urge and ability to migrate seems unlikely to evolve within it over the next six and a half decades, and as 75 percent of the current breeding range is projected to shift the fate of this species may be uncertain.