The Greater Snow Geese at the Victoriaville Beaudet reservoir now number at least 100,000, and is the focal point for fellow photogs to try their luck in photographing at least one of them :-)
There is no problem in photographing individual birds in flight, but it is much more difficult in getting a good pic of several in the same frame.
The available light played an important part with this pic - direct daylight is not the best for white birds with the heavy contrast blowing out the whites. I was fortunate to have a thin shroud of clouds lightly veiling the sun.
Canon 7D with 500IS f4 lens @1/1000, f4, ISO 200, hand-held.
The image was not cropped, although I did clone out a small wingtip on the right edge. I used the blur tool in Photoshop to soften the background.
Cheers,
Mike