Reuters: The death toll among ducks that landed on a toxic waste pond at Syncrude Canada Ltd’s oil sands operation last spring was 1,606, more than three times higher than previously made public, Syncrude’s chief executive said on Tuesday. Syncrude CEO Tom Katinas disclosed the final count after getting permission from prosecutors in a criminal case against Canada’s biggest oil sands producer over the deaths, which became symbolic in efforts by green groups to highlight the environmental …