FAIRBANKS, Alaska, Sept. 23 (UPI) -- This year, scientists searching for Caspian terns in the parts of Alaska where the coastal species normally nests were out of luck. The birds were 1,000 miles to the north.
In 2016, Alaska's Caspian terns abandoned their normal breeding grounds for beaches inside the Arctic Circle. This year's nesting site is 1,000 miles farther north than any previously documented site.