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.
Compared to its larger cousin, the Lesser Scaup has only a subtle white stripe in the wing and breeds further south, often on smaller lakes in wooded areas. Audubon's climate model projects a 65 percent loss of current summer range by 2080. Currently it doesn’t breed on the tundra of the northern edge of Alaska or the Canadian Arctic, identified by the model as having appropriate climate, but it may move into those areas in the future. The Lesser Scaup is quite widespread in winter, and the model projects that this is unlikely to change, with the species spreading out across the lower 48.