Oil company Syncrude Canada has been found guilty by a Canadian court of killing 1,600 ducks two years ago by allowing the birds to land on a toxic pond filled with oilsands waste in April 2008. A judge determined Syncrude was liable for the deaths because it had reduced efforts to deter wildlife away from the four-and-a-half square mile pond consisting of clay, water, sand, hydrocarbons and heavy metals that are left over when extracting oil from sandy deposits at its Aurora mine site.