GREAT BLUE HERON, CHICAGO BOTANIC GARDEN, GLENCOE, ILLINOIS, MAY 3, 2014
Pentax 55-300 at 190mm
1/1000 sec. f8
This one let me tiptoe so close that I actually had to dial back on the telephoto in order to get the entire bird into the frame rather than shooting at the full 300 millimeters and then cropping hard.