It suddenly dawned on me after a half hour of shooting, that the beautiful mist enveloping the birds on the pond had not been there before they arrived. It was so cold and there were so many thousands of warm-bodied, heavy breathing snow geese and sandhill cranes, they were generating their own fog. This was what I called the second staging pond; after the geese left the two larger ponds in the middle of the Bosque del Apache Wildlife Refuge, they would all congregate on this, outlying, relatively smaller pond and leave just after sunrise for the feeding fields. When they left they would blast off en masse, sounding like the roar of a jet, and creating a disturbance in the air that you could feel as they passed directly over.
