A Monarch Butterfly (Danaus plexippus) visits a Zahara Sunburst flower (Zinnia elegans) for a nectar lunch during his journey south to Mexico. #MonarchButterfly #Monarch #Butterfly #DanausPlexippus #ZaharaSunburst #ZinniaElegans #Flower #Nectar #JourneyToMexico #AmericanMeadows #Gardening #PlantBiology #AnimalBiology #Biology