First Butterfly ID in the southwest!

I am trying to become a naturalist and am partaking in learning butterfly ID. As I was birding around our field house near Blythe, CA, I noticed a butterfly so I snapped a few photos. I went back to the house and searched through a field guide and the species came out to be Queen, Danaus gilippus, a member of family Nymphalidae. Queen are found in the extreme southern United States and south through the tropical lowlands of the West Indies and Central America to Argentina. While looking up facts about the species, the most interesting was that males patrol areas all day just to find females!

Source: http://www.butterfliesandmoths.org/species/Danaus-gilippus