Languages: English. The Mississippi River's Bird's Foot Delta, a vital ecological and economic region, faces rapid deterioration because of rising sea levels, sediment shortages and invasive species.

Along with human life, the Mississippi River Delta is home to an abundance of wildlife, including 400 species of birds, as well as countless other fish, mammals, amphibians, and smaller organisms ...

If birds left tracks in the sky ... At a calm bay north of Spain’s Ebro River Delta on the Mediterranean coast, a flock of greater flamingos is silhouetted in the water, while European herring ...