David Boston Photography
Trumpeter Swan (Cygnus buccinator) feeding in the Firehole River (Yellowstone NP)
Canon EOS 7D, EF100-400mm f/4.5-5.6L IS USM, 210 mm, ISO 200, 1/1250 sec at f / 5.0, © 2014, David W. Boston
Trumpeter Swan (Cygnus buccinator) feeding in the Firehole River (Yellowstone NP)
Canon EOS 7D, EF100-400mm f/4.5-5.6L IS USM, 210 mm, ISO 200, 1/1250 sec at f / 5.0, © 2014, David W. Boston