Only saw the one; only for a short 20 minutes and he/she flew off!
This was at Stagecoach Reservoir, SouthEast of Steamboat.
Best viewed in 'original' size.
Leica D-Lux 4 APO Televid 82mm Scope 1/250s f/5.6 at 12.8mm iso80
Free Crop and Reduced to 180 ppi for Internet Viewing
full exif