Small White-tailed Buck Feeding

Looks like a simple photo to capture right? Guess again. I'll explain.
 
Often, the best height to shoot wildlife from is level with the subject. Typically, the head is the most important part of that subject. And when that head is on the ground feeding, level means shooting from right down on the ground. shooting from the low position has the benefit of a more distant background that becomes nicely blurred.
 
Usually, the best wildlife lighting is a low sun at your back with your shadow pointing directly toward the subject. Since wildlife does not care about your lighting needs, patience is often required to get good lighting on a particular subject. And sometimes a LOT of patience is required.
 
The young white-tailed buck shown here was constantly moving. Its path was unpredictable and the head was constantly moving back and forth. I spent a lot of time trying to predict where it would feed to, aligning my position with a clean background for the predicted subject location and focusing immediately when taking the shot just as the head moved into a frame of the deer's front legs.
 
The narrow angle of view a 600mm lens provides makes this challenge even harder. I happened to cut off the tip of the buck's antlers in the fast-framed shot, but was able to piece the rest of the image together using another image.