Poetry in motion

This is an African white pelican in Lake Nakuru National Park, Kenya. I rarely like blurred pictures of birds in flight, but I experimented at the lake hoping to get something artistically pleasing. What is particularly interesting about this picture is that the pelican was flying past tens of thousands of pink flamingos. That's what comprises the colorful abstract background, and that's why I tried a different kind of technique here. I lowered the ISO to 100 and closed the lens down to f/18 in order to end up with a shutter speed slow enough to create this kind of blur. The shutter speed was 1/25th of a second, and the lens I used was the Canon 500mm f/4 with a 1.4x teleconveter, giving me 700mm of focal length. This picture is uncropped. I used a tripod with a Wimberly gimbal head to manage the weight of the large lens.