Pelicans

Pelicans taking a break from their flight south to warmer weather. 

This is a green mark to delineate the Navigation Lane on the Mississippi River to the Gulf of Mexico. We keep to the starboard of green buoys and marks as we head south. Heading north from the sea, there is a little saying:
Red Right Returning from the sea. It helps boats, barges
and ships stay in the appropriate lanes.