As the fall day neared its end, and the evening sun grew dim, my older brother and I lazily walked across the swampy tundra toward our camp, carrying our shotguns and several ducks we had caught. The Northwest Alaska air was still but there was a September-like nip in the breeze. As I looked back to see where we had been earlier that day, a movement in the distance caught my eye. My first thought was: Who is that?