The Army Corps of Engineers released an environmental assessment for
public review Wednesday that outlines a plan to relocate the largest Caspian
tern colony in North America in an attempt to reduce predation on juvenile
salmon in the Columbia River estuary. If approved, the Corps will attempt
to move the tern colony, which is estimated at 10,000 breeding pairs, from
an 8-acre site on the west end of Rice Island, a manmade dredge spoil disposal
island at river mile 21, to East Sand …