An interagency "Caspian Tern Working Group" has come up with
a temporary plan to significantly reduce bird predation on salmon smolts
near the mouth of the Columbia River next year.
At issue is how to manage the 8,000 pairs of Caspian terns on Rice Island,
a man-made dredge spoil disposal island. Now the largest tern colony in
the world, researchers estimate these birds consume between 5 and 20 million
juvenile salmonids during the migration season, or up to 20 percent …