I’ve mentioned before that it is fairly easy to photograph penguins. You always know where they’ll be because they don’t venture far from their colonies while not at sea. You simply wait for good light and then begin snapping the shutter. In this case, I had nice rim light at the end of the day while these gentoo penguins were heading home after an afternoon of fishing.
Nikon D800 with Nikkor 200-400mm lens (at 400mm) ISO 800, f/5.6 at 1/200th of a second