Bird Alert

摘要

In the vast boreal forests of Alberta, Canada, as many as 166 million birds-including the Canada warbler (Wilsonian canadensis), pictured above-could die within the next 50 years, predicts a December 2008 NRDC report. The cause: the extraction and production of oil from the province's huge tar sands reserves.rnThe Canadian boreal is the annual breeding site of tens of millions of migratory birds. The tar sands reserves, which lie underground, contain bitumen, a viscous liquid that can be converted into fuel. The United States is the world's largest consumer of Alberta tar sands oil, which has a production process that is destructive to critical bird-breeding habitat.