How did i take a photo of one bird with two motions?

Question

There is a bit of trick photography in the picture and I wonder if you can tell me how I did it. I have captured a crow which appeared to be ghosted. I took it at the beginning of it's downbeat of wings and the upbeat also simultaneously.

http://www.flickr.com/photos/harold2

Answer 1

I did something similar on my phone with the Golden Eagle at a Raptor centre one  moment, typical folded down wings eagle pose the next shot wings open beak gaping, right in yer face, freak out! If you flick them back and forth it makes a neat trick too.