Aerial a flock of seagulls flocked to an exposed sand bar at low tide, Rocky Point, Puerto Peñasco, Gulf of California, Mexico

puerto penasco cholla bay bahia la choyas tidal pools sand flats gulf of california low tide intertidal beach marine environment plover marine biomes laguna del mar littoral zone sand bar rock flats sandpiper foreshore sand ridges rocky point tide pacific ocean aerial rocky shore saltwater colony pelicans seagulls habitat extreme ecosystem colonies surface feeders mexico seabirds holes drone waves feeding niches surf biodiversity ecology flock crevices white plumage waterproof web feet cracks grey fearless black