 Over 30 species of seabirds and approximately 20 million individuals breed in the Bering Sea region.Seabird species include tufted puffins, the endangered short-tailed albatross, spectacled eider, and red-legged kittiwakes.Many of these species are unique to the area, which provides highly productive foraging habitat, particularly along the shelf edge and in other nutrient-rich upwelling regions, such as the Pribilof, Zhemchug, and Pervenets canyons.