FILE - In this May 13, 2011 file photo, red knots rest 

FILE - In this May 13, 2011 file photo, red knots rest at Slaughter Beach in Delaware during their annual migration. Superstorm Sandy damaged beaches along the Delaware Bay where horseshoe crabs lay their eggs every year. As do other migrating shore birds, the red knot depends on those eggs for survival during long seasonal migrations. (AP Photo/The News Journal, Gary Emeigh) NO SALES
Associated Press
FILE - In this May 13, 2011 file photo, red knots rest at Slaughter Beach in Delaware during their annual migration. Superstorm Sandy damaged beaches along the Delaware Bay where horseshoe crabs lay their eggs every year. As do other migrating shore birds, the red knot depends on those eggs for survival during long seasonal migrations. (AP Photo/The News Journal, Gary Emeigh) NO SALES
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