ABR conducted boat-based and aerial surveys to document the seasonal distribution and abundance of marine-oriented birds and marine mammals, including threatened and endangered bird and mammal species, in a broad region surrounding several proposed port site options in lower Cook Inlet, Alaska. The work was conducted as part of the baseline wildlife surveys for a large heavy metals mine near Lake Iliamna, Alaska. Survey platforms used were boat-based (ship and inflatable skiff), and fixed-wing and helicopter aerial surveys. Initial surveys included all marine bird and mammal species during seasonally focused field work. In later years, monthly surveys were focused on threatened northern sea otters and Steller’s Eiders, although all species encountered were recorded. Duration: 2004-2011.