shorebird egrets and herons, hilton head island

acre albus alligator alligators american and are beach bird birds blue carolina concentrations cordgrass creeks dead deer egrets eudocimus for foraging forests glasswort gnarled grass great gull habitat hay head heron herons hilton ibis immature intracoastal island large laughing little marsh migrants national nature neotropical palmetto pannes perched pickney pond ponds preserve raptors refuge rocky salt saw seagull shore shorebirds sihouette skeleton south spike swamp tidal tree tricolored usa wading waterfowl waterway white whitetailed wildlife