Oil in Gulf marshlands could destroy the root system of the Louisiana marsh plants and turn the areas into open water . He said that more than 13 million migratory birds come to the Gulf marshlands each winter , though the exact number is hard to determine . Oil will impact millions of migratory birds that rely on marshland resources for the winter . Oil hurts birds by covering their plumage , poisoning their food supply and damaging reproduction . Title: Why do we have to wait until a certain time before getting our hair cut?
Oil in Gulf marshlands could destroy the root system of the Louisiana marsh plants and turn the areas into open water . Oil will impact millions of migratory birds that rely on marshland resources for the winter . Oil hurts birds by covering their plumage , poisoning their food supply and damaging reproduction . Title: Why do we have to wait until a certain time before getting our hair cut?