The idea was to adapt the eagle.au3 example posted by mesale0077 making the bird fly across the monitor.
This is the result:
eagle fly GreenCan.au3
But, I was not really happy with the result, so I thought, maybe use the original animated gif and move it across the monitor using a transparent GUI.
This is a script based on an example of trancexx' GIFAnimation udf.
GIFAnimation.au3 is required for below example and can be found here: GIFAnimation.au3
I think the result is