several black storks stroll leisurely along the wetland bank

bird water waterbird duck wildlife ducks animal reflection waterfowl pond river wetland lake nature mallard goose swan beak sea waterway black storks stroll leisurely bank stork genus family storkidae live large lakes swamps rivers breed cliffs tall trees good singing alert afraid people likes forage wetlands food fish frogs crustaceans insects lifespan reach years national first-level protected wild china