Sony Alpha 1 and FE 600mm f/4 GM Lens Capture a Weasel's Curiosity, Rocky Mountain National Park

Adorable or vicious killer? Right — both descriptions accurately describe this little predator.

The opportunity was a unique one. What started as a glimpse of a weasel hunting in the brush turned into an afternoon of waiting, with some watching and photographing mixed in.

Often nocturnal, weasels are seldom seen, and when they show do themselves, getting these fast- and erratically-moving critters in the frame is tremendously challenging, even without accounting for accurate focusing. This weasel finally paused momentarily to check out (her reflection in?) the near-ground-level Sony FE 600mm f/4 GM OSS Lens aimed in her direction.

A larger version of this image is available on Flickr.