I take weekly Sunday morning walks with a birding group, truth is I'm a mammal guy. With this being the first walk with the 7100 I decided to take the 70-300mm VR. These shots are right out of the camera with Whitebalance adjusted to Cloudy from Auto WB-1 Picture control set to Landscape. These were the only adjustments made to the image. This is a shot of a Snowshoe Hare running flat out.
75mm ISO 400, 1/1600 f/4.5
Here is the same shot @ 100% crop of the image.
The light conditions were brutal with threatening snow and heavy overcast skies. I thought that folks might be interested in an example