Red-throated Loon Red-throated Loon, Gooseberry Island, Westport, MA, January 12, 2024Canon EOS R5 with Canon 100-500 mm L-series lens with 1.4x Teleconverter; 700 mm; ISO-400; f/11; 1/1000 sec. This page is for the Red-throated Loon (Gavia stellata).