Aerial, flocks of seagulls take off in unison from the intertidal beaches, Puerto Peñasco, Rocky Point, Gulf of California, Mexico

aerial drone seagulls sea birds take off unison low tide sand bar intertidal beach puerto penasco rocky point gulf of california mexico waves ocean sandy beach receding tide flying flay away animals sand flats rock flats foreshore habitat littoral zone rocky shore marine biomes ecology extreme ecosystem drastic change holes cracks crevices biodiversity marine habitat fragile ecosystems nature shoreline solitude wildlife reserve environment geography rugged exploration coastal feature environmental conservation nature reserve