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.

Climate Threatened

Razorbill

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.

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.
Winter
Summer

Winter Range
Summer Range
Both Seasons
Zoom InOut
Focal Species
Tony Smith/Flickr Creative Commons

Birders often remark that the West Coast gets all the “good” alcids. That’s mainly true, but the Razorbill is a notable exception to the rule. This classy seabird’s North American range is limited strictly to the sea cliffs and open ocean off the East Coast. Audubon’s climate model, however, suggests that may change, as climatically suitable regions may soon become available on the West Coast, though at the cost of over half of the current climate space on the East Coast. A huge challenge at the current time is dispersal; but with sea ice in the Arctic Ocean widely expected to continue melting, Razorbills may now be able to make the biogeographic leap from East to West.

Species Range Change from 2000 to 2080

The size of the circles roughly indicates the species’ range size in 2000 (left) and 2080 (right).

The amount of overlap between the 2000 circle and the 2080 circle indicates how stable the range will be geographically. Lots of overlap means the bird’s range doesn’t shift much. No overlap means the species will leave its current range entirely.


Birds at Risk

Explore more birds threatened by climate change around the country.

Allen's Hummingbird
Baird's Sparrow
Bald Eagle
Brown Pelican
Burrowing Owl
Cerulean Warbler
Common Loon
Eastern Whip-poor-will
Golden Eagle
Greater Sage-Grouse
Hooded Oriole
Mississippi Kite
Northern Shoveler
Osprey
Piping Plover
Ruffed Grouse
Rufous Hummingbird
Spotted Owl
Tundra Swan
White-throated Sparrow
Yellow-billed Magpie