Mmmm. This vector business is hard enough just trying to create static forms, but trying to impart a sense of movement – that’s tricky. Here’s an attempt to do just that with a mallard coming in to land. Must be quackers.
Grateful acknowledgements to Alan D. Wilson for Creative Commons (Attribution-ShareAlike 2.5) use of source photograph. http://www.britannica.com/EBchecked/topic/360302/mallard