A Sandpiper walk along the wrack line of shells and debris on the beach, Rocky Point, Puerto Peñasco, Gulf of California, Mexico

sand piper puerto penasco shorebird gulf of california marine environment sandpiper beach saltwater seabird sand waterbird sea shells seafoam seascape surf seashells rocky point tide debris waves ocean feeding niches coastline surface feeders splashing searching splash motion waterfowl animals walking mexico stepping thorugh commonly seen crashing rocks wandering wrackline plumage fearless strolling energy grey power bill long legs web feet white black