During a recent visit to Jackson Miles Abbott Wetland Refuge Slaty Skimmer dragonflies (Libellula incesta) were probably the most common dragonflies that I spotted. They were buzzing around the pond and seemed unafraid to approach me. Somehow it seemed to me that they were friendly.
Slaty Skimmers have dark eyes and dark bodies, so they are pretty easy to identify. When the light is hitting them from the proper angle. though, they appear to be dark slate blue or purple in color rather than black.
© Michael Q. Powell. All rights reserved.
Mike Powell 
Oh my goodness, these are such beautiful photos, Mike. Wow!