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.
Two species of dowitchers—the Short-billed and the Long-billed—are notoriously similar in appearance. However, their favored microhabitats in winter usually differ, with Short-bills occupying saltwater habitats near the coast, and Long-bills in freshwater habitats often well inland. Audubon's climate model shows a major shift of suitable winter climate for Short-billed Dowitchers, especially along the Gulf Coast, with only 13 percent of the current range remaining stable. At the same time, the species may expand inland in the Southwest, an area already occupied by wintering Long-billed Dowitchers. If wintering Short-bills can adapt to the region, it will be interesting to see how the two species interact.