Buff-breasted Sandpiper Buff-breasted Sandpiper, Hagerman NWR, Sherman, TX, September 2, 2023Canon EOS R5 with Canon 100-500 mm L-series lens with 1.4x Teleconverter; 700 mm; ISO-1600; f/11; 1/800 sec. -1 exposure bias. This page is for the Buff-breasted Sandpiper (Calidris subruficollis).