I saw this Redtail Hawk fly from half-way across the park in a high tree branch to the center of the Oval Garden and catch this large rat.
This is about a tenth of a second before the hawk took off to eat its prey on a branch of a nearby elm.
I was on my roof before the rain this weekend and I saw a pigeon sized bird on top of a nearby ginkgo tree. With my unaided eye I could only see that it had unusual color and even looking through the view finder it was hard to tell what it was. I was surprised that it was such a beautiful, unusual bird when I was able to view it on my computer screen.