It seems when we get these extreme cold spells I migrate to the open water on the river where these Trumpeter Swans congregate throughout the winter up here in Minnesota. This image was taken this past weekend at -16 degrees.
http://www.pbase.com/image/120809757.jpg
Nikon D300 ~ Nikkor 300mm F/2.8 ~ Nikon 1.4x TC
ISO 640 ~ F/8 ~ 1/1600 sec ~ +1 EV ~ Gitzo tripod

