I was able to get some better pictures of a horned owl that lives in the park northwest of UNR. I found that the time window to get photos of them is not very long, about 30 minutes or so. I may try to get more pictures later in the spring.
These were taken with my Pentax K-5 and my 50-200mm lens. I am glad that I decided to purchase this lens instead of an AC adapter for the camera.