Backlighting on translucent wings

I've experimented with lighting when I do hummingbird setups, and this is one example. Backlighting is perhaps the most beautiful type of illumination, especially when subjects are translucent. For this white-throated mountaingem hummer in Costa Rica, I used two portable flash units. One was placed behind and to the left of the bird, and another one was positioned in the front and to the right. I reduced the light output of the flash in front so it didn't overwhelm the backlighting. It took a few text shots to get the lighting exactly as I wanted it. The translucent wings glowed beautifully, and the edge lighting on the neck also worked out really well. I used a 70-200mm lens set to 160mm, and my settings were 1/200, f/13, and 400 ISO. That shutter speed would never freeze the wing movement; instead, it was the extremely short flash duration that was responsible for rendering the wings tack sharp. That speed was 1/16,000th of a second.