Long-Tailed Weasel from Yellowstone

We were lucky enough to find a long-tailed weasel.  He was across the river on a hill and was very difficult to spot.  I couldn’t find him after he was spotted.  Had to try to find his black tail bounding across the snow.  Cute little critter but a very vicious carnivore with sharp teeth and claws.

Taken with Canon 1DX and Canon 500mm F4 IS II lens, handheld

1/800 sec @ F6.3, ISO 1600, spot metering off the snow +2 tops, manual mode