Each map is a visual guide to where a particular bird species may find the climate conditions it needs to survive in the future. We call this the bird’s “climatic range.”
The colors indicate the season in which the bird may find suitable conditions— blue for winter, yellow for summer (breeding), and green for where they overlap (indicating their presence year-round).
The darker the shaded area, the more likely it is the bird species will find suitable climate conditions to survive there.
The outline of the approximate current range for each season remains fixed in each frame, allowing you to compare how the range will expand, contract, or shift in the future.
The first frame of the animation shows where the bird can find a suitable climate today (based on data from 2000). The next three frames predict where this bird’s suitable climate may shift in the future—one frame each for 2020, 2050, and 2080.
You can play or pause the animation with the orange button in the lower left, or select an individual frame to study by clicking on its year.
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.
Explore more birds threatened by climate change around the country.
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