Winter Setting Sun Limelight - Clark Fork River Backwater Slough.
Wind south @ 28 MPH - Temperature 10 degrees Fahrenheit - Chill Factor minus 12 degrees Fahrenheit.
Montana Bison Silhouette - National Bison Range.
Trumpeter Swans often mate for life - in this scene a male and female are photographed on a frozen portion of Bull River near the confluence of the Clark Fork River. Males are larger weighing up to 26 lbs., while females can weigh 22 lbs. Powerful flyers with seven-foot wingspans Trumpeters can attain speeds of 60 MPH, while normally cruising at 25 MPH.