In the L image, the Black Egret is already tented-up and fishing. The Black Egret in the R image is seeking a place to set itself up to fish. This is a small bird, but a very effective fisherman. It spreads its wings over the water, making a tent-like structure, and waits until a fish swims by. The darkness under the 'tent' makes the fish easy prey, because it cannot see the bird hovering over it. (Please see next image.) [Botswana].