Crested Auklet Portrait (Aethia cristatella, CRAU) Saint Paul Island, The Pribilof Islands in the Bering Sea, Alaska. Image Copyright ©Christopher Dodds. Canon 1DX, 600mm F4 L IS II , 2X Teleconverter III & 25mm Extension Tube, Jobu Designs Algonquin Tripod & Jobu Jr. 3 ISO 2,500 f/16 @ 1/500s Manual Mode. PURCHASE A PRINT or LICENSE IMAGE FOR PUBLICATION HERE.
Here's an intimate portrait (of what has to be my favorite bird) from my recent Saint Paul Island Workshop; the Crested Auklet. Getting close and isolating the subject against the dark cliffs requires lots of patience, but the real secret is simply approaching the cliff edge slowly so they don't flush before you even know they are there. Always remember to use a small enough aperture to maximize the depth of field, which is extemely narrow at the lens/extender/extension tube minimum focusing distance. Choose your shutter speed to freeze the birds sudden movements and any feathers blown around by the wind if there are any.
Using a sturdy tripod with a good tripod head and micro-calibrating your camera are, of course, the foundation to crisp and sharp images.