Hundreds of sea gulls scavenge for food as bulldozers bury rubbish at the now-closed Wake County Landfill in North Raleigh in this file photo. A study by Duke University researchers concludes that gulls feeding on trash can be a significant course of nitrogen and phosphorus at nearby lakes. TRAVIS LONG TRAVIS LONG
Sea Gulls scavenge for food.
( z1 scavenge :ARG0 ( z2 gull :mod ( z3 sea ) ) :ARG1 ( z4 food ) )