In this photo taken Sunday, Oct. 28, 2012, a lone swan swims in open water in the mostly frozen Westchester Lagoon in Anchorage, Alaska. Trumpeter swans continued a remarkable comeback

 

              In this photo taken Sunday, Oct. 28, 2012, a lone swan swims in open water in the mostly frozen Westchester Lagoon in Anchorage, Alaska. Trumpeter swans continued a remarkable comeback
In this photo taken Sunday, Oct. 28, 2012, a lone swan swims in open water in the mostly frozen Westchester Lagoon in Anchorage, Alaska. Trumpeter swans continued a remarkable comeback from near extinction in the Lower 48 states and much of their Alaska habitat, said federal wildlife biologist Deborah Groves, who has counted Alaska swans since 1990. (AP Photo/Dan Joling)