Greater Scaup Greater Scaup, Parker River NWR, Plum Island, MA, January 11, 2024Canon EOS R5 with Canon 100-500 mm L-series lens with 1.4x Teleconverter; 700 mm; ISO-2000; f/10; 1/1000 sec. This page is for the Greater Scaup (Aythya marila). Greater Scaup, Parker River NWR, Plum Island, MA, January 11, 2024Canon EOS R5 with Canon 100-500 mm L-series lens with 1.4x Teleconverter; 700 mm; ISO-5000; f/10; 1/800 sec. Greater Scaup, Parker River NWR, Plum Island, MA, January 11, 2024Canon EOS R5 with Canon 100-500 mm L-series lens with 1.4x Teleconverter; 700 mm; ISO-1600; f/10; 1/1000 sec.