Ostrich, Kalahari Game Reserve, BotswanaThe ostrich is the largest bird in the world. Males can grow to more than nine feet tall and weigh in at over 250 pounds. They also have the largest eyes of any land vertebrate with a circumference of two inches. That whole hiding-their-heads-in-the-sand-to-avoid-danger thing is just a myth. I was tracking this large boy as he raced across the flat grasslands of the Central Kalahari Game Reserve in Botswana.
Nikon D300 with Nikkor 200-400mm lens (at 400mm) ISO 800, f/5.6 at 1/125th of a second