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.
On a mid-May day in the Midwest, there is scarcely a tree that doesn’t host a northward-bound male Tennessee Warbler, vociferously belting out its loud, “sewing machine” song. Audubon's climate model projects a 58 percent loss of current summer range by 2080, with a strong shift northward. Much of the new space to the north is on what is now Arctic tundra, though, and this is a forest-dwelling species, so it may have to wait for forests to grow. Thankfully, this is a numerous species with a broad range. Almost all Tennessee Warblers currently winter in Middle America, but the model shows a large amount of suitable space opening up along the Gulf Coast.