Puffins in the water are shy, flipping underwater as soon as a boat gets too close. On land, not so much. The colony of Atlantic puffins breeding on Lunga Island, Scotland, seemed undisturbed by dozens of tourists within two or three feet of their nests. We had a rare sunny day to watch these birds, which were just starting to breed in late June 2013. Their day was divided between territorial squabbles and nest-building, interrupted by occasional trips to bring back some fish for their mates.