Caspian Tern at Ottowa NWR, adjoining Magee Marsh. 5/2/14, 1:05:19 PM 033-20140502_RGS_0206.JPG 500.0 mm 1/400 sec f13.0 ISO 400 Exp bias +0.0 OFF - Compulsory flash mode Canon EOS-1D Mark IV