large flock of birds flying above white sand beach along brown river coastline in Rio Lagartos, aerial top down

birds flying large flock white sand beach coastline wildlife river brown water rio lagartos mexico aerial top down lagoon yucatan landscape biosphere natural reserve nature environment coast conservation resevoir sanctuary outdoors wilderness countryside rural estuary reserve wetland wild lake marsh sand shore beautiful tourism ecosystem habitat tropical untouched no people shallow birdwatching animals riverbank trees exotic