While not a high key silhouette, let's see if you think it works or not.
Shot set up by using a two color concrete wall as the background, with a hole in the wall providing backlighting. This is a favorite perch of the hummingbird and I tried to get the backlight lined up with the bird, although the bird never landed exactly where i wanted. I did get this, though the pose was a bonus. Some may choose to repair the damaged feather, but at least for now I opted to leave it.
Another Green-throated Carib









