Dead seabirds are seen on the shore as thick fuel-oil from the stricken container ship Rena fouls beaches at Papamoa, near Tauranga October 12, 2011. The 47,230-tonne Liberian-flagged Rena has been stranded on a reef 12 nautical miles off Tauranga on the east coast of New Zealand's North Island since running aground a week ago and authorities estimated 300 tonnes of oil have escaped from the ship, causing the country's worst environmental disaster in decades. REUTERS/Mike Hutchings (NEW ZEALAND - Tags: ENVIRONMENT DISASTER BUSINESS ANIMALS ENERGY)