basement of las golondrinas hirundo rustica is a natural abyss located in the town of aquismón belonging to the mexican state

abyss animal animals aquismón background barn basement beautiful beauty belonging bird black blue daurica earth erosion flight fly forest forms golondrinas green hirundo hiruundo landscape las light located luis mexican mountain natural nature nobody outdoor passeriformes potos river rock rustica san sky skylark species state summer swallow texture tourism town travel view white wild wildlife wings