Puffins return to their summer breeding grounds on the Farne Islands as National Trust rangers carry out a Puffin census on May 16, 2013 in the Farne Islands, England.  (Photo by Jeff J Mitchell/Getty Images)

Atlantic Puffin Population At Risk As Ocean Temperatures Rise

The Atlantic puffin population is at risk in the United States, and there are signs the seabirds are in distress in other parts of the world.