546mm isn't enough reach. (300x1.4x1.3) <img src="http://www.themeparkphotos.us/cpg140/albums/uploads/103007/E/226E1618.JPG" /> <img src="http://www.themeparkphotos.us/cpg140/albums/uploads/103007/E/226E1649.JPG" />
I like the 2nd shot, I had to look twice as it almost looks like one bird going through the movement of flight
I like that second shot too - the light on the ducks is great. Surprising that you got pretty good separation from the background at full telephoto plus extension lenses, because there doesn't appear to be alot of distance between them and the background. In this case, the ducks stand out pretty well.
