I'm going to disapoint those expecting a fancy editing process, it was a reasonably bright day, I was tracking this swan as it drifted below me from a high bank, I adjusted the shutter speed and aperture to avoid washing out on the feathers and obtained an almost black background from that alone, adjusted the contrast slightly and cropped.
Thanks for the comments and votes
Ooooooh. . . .I'm rather partial to this shot. It resembles my "S" Stork picture for the letter challenge. Only yours is prettier because it didn't have to be in the shape of a boring letter :) Good luck, maybe it will win a ribbon too! I hope so! Good luck!
The way that the black background goes about it, it seems as though the swan is sitting on a black surface. I think that you could have brought out the whites a little bit more in the image. I like the use of negative space here.