This young Snowy Owl seems to be at home perched during a snow fall.
Canon 7D with the 500L f4 lens handheld @ 1/1000, f10, ISO 400, +1/3 exposure compensation.
Very slight crop for composition purposes.
I was lucky that the clouds with the snow fall were not the typically dark grey, so there was a tiny minimum of filtered diffused light.
Because the image out of the camera looks almost black and white, I simply upped the vibracy or saturation of the image to a point that my subjective brain remembered seeing in real life - it's surprising how much colour information your sensor captures.
What is important here to catch the snowflakes is to have a dark background, in this case, a very far-off tree line. This way, the snowflakes stand out. You can also play with the shutter speed faster or slower to change the effect of the snowflakes.
Then, of course, you have to have an immobile perched snowy owl that doesn't have a snowflake in front of his eyes!
Cheers,
Mike