| Aerial surveys show that Louisiana's barrier islands have sustained especially heavy losses from Katrina's scouring winds and waves. |
| Those winds will whip or lash coastal communities and batter barrier islands along the mid-Atlantic. |
| Lower densities of common eiders were observed seaward of the barrier islands up to 50 km from shore. |
| Coastal barriers may be described by their relationships to the mainland as bay barriers, tombolos, barrier spits, and barrier islands. |
| Other typical habitats include sandy areas behind barrier islands, and sand bodies within inlet mouths. |
| The longshore current can carry large amounts of sand along the coast and can form spits, barrier islands and tombolos. |
