Johnny Rook, Saunders Island, Falkland IslandsJohnny rook is the local nickname for the striated caracara, likely due to its main prey the gentoo penguin, which itself is often called the Johnny penguin (all very confusing). That’s a gentoo penguin off to the right in the background. These raptors were relentless with their efforts to infiltrate the penguin colonies and steal their eggs. I was down on the ground photographing a few of them when I turned around and saw this guy running toward me (I think he thought I might have something tasty in my backpack). I wish he didn’t have a tag but all in the name of conservation efforts. Nikon D810 with Nikkor 70-200mm lens (at 135mm) ISO 800, f/8 at 1/1600th of a second.