The photos show a Golden Eagle attacking a white-tailed deer. They are quite impressive and it seems crazy that an eagle would try to take down a deer. Does the deer need to worry? Maybe.
The first thing that came to mind though when I saw the photos was this video from a few years back. A Golden Eagle picks a mountain goat off the side of a mountain and eats it. By all means watch the entire thing but the most amazing part starts at about 4:55. The eagle actually flies while carrying a goat. Amazing. The video is from Europe.