A
marsh
is a wetland submerged by water. The water may be a few inches deep to
two or
three feet. It provides traditional habitat for many birds like ducks,
herons
and shorebirds. Most marshes are low-lying areas around lakes, rivers
and
streams. They have grassy vegetation that can live and grow in the wet
conditions. Higher ground also has trees and bushes that add to the
diversity
of food and shelter for wildlife.