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.
These animated nuthatches roam about in small flocks in longleaf pine forests—a habitat at risk even without the threat of climate change. Audubon's climate model for this species highlights one of the biggest challenges for anticipating the effects of climate change, namely, the decoupling of summer and winter ranges. The Brown-headed Nuthatch is non-migratory, adapted for yearlong residence in its favored habitat. But the model shows divergent climate trajectories, with a substantial increase of suitable climate space in winter and a near-collapse of such climate space in summer. Unfortunately, any gains in winter survivorship will be wiped out by sharp summertime losses in productivity.
Explore more birds threatened by climate change around the country.
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