Syncrude trial put over to June 10th for causing the death of 500 ducks in their massive toxic tailings pond last year.

The ducks were travelling on their spring migration when they landed on Syncrude's tailings pond, and 500 waterfowl were killed.

In January, Sierra Club Canada launched a private prosecution against Syncrude under the Federal Migratory Birds Convention Act, which prohibits the deposit of a harmful substance in an area frequented by migratory birds.

And one month later, the provincial and federal government served Syncrude with joint charges under the Migratory Birds Convention Act and the Alberta Environmental Protection and Enhancement Act.

The provincial charge carries a maximum fine of $500,000, while the charge from Environment Canada could cost the company up to $300,000. The plan is to seek the maximum penalty.

Syncrude said it's cooperated fully with the investigation and will continue throughout the court process.

The company made roughly $4 billion last year.