The male magnificent frigatebird and its balloon-like red throat pouch is one of the iconic images of the Galapagos Islands. The males will inflate their pouches during the mating season to attract females. This guy seems to have been successful in his mission.
Nikon D800 with Nikkor 200-400mm lens (at 400mm) ISO 400, f/4 at 1/3200th of a second (-1/3 stop ev)