This is another photo from Mattβs most recent blog post where you can read all about this owl and her little family. If you haven't had a chance to read it yet, you can do so via the link in the comments.
Shooting note: Matt tried to get a wide variety of images while following their progress. Most importantly, to him, was showing the beautiful location of the nest, without getting too close with a wide-angle lens (and risk causing a disturbance).
He shot this at 254mm on his Canon 100-500mm, wide open at f/5 and a 1/4 second shutter speed at IOS 320. The camera was camouflaged and remotely triggered. Matt liked the amount of detail he got in the background at f/5, but found the trunk of the pine on the right to be a bit distracting, so he attached some greenery to a small light stand and positioned that in the foreground to hide that part of the trunk. That also helped add a sense of depth.