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.
This is the quintessential gull: big and adaptable, lively and successful. Audubon's climate model forecasts a 55 percent loss of current winter range by 2080 and similar losses during the summer. A surprising aspect of the summer projection is withdrawal from the most northerly portions of the range—the opposite of most other birds with high-latitude breeding ranges. Projected potential winter gains are due in large part to expansion northward of suitable climate space for the species. With the right combination of garbage dumps, shopping malls, and coastlines, Herring Gulls may have a better chance at weathering climate change than other species.