Eastern Screech Owl in my back yard

Over the past two days I have seen lots of action in the back yard. Yesterday I saw the owl fly out of the box and land on top of the nesting box. He then flew to the tree behind the house. Quickly he flew to the ground and mantled something. It was dusk so hard to see what it was. Flew back on top of the hummingbird holder. Erle and I then noticed that there was a second owl face in the nest box. YES two owls in the box. The second owl flew out to the cedars. Tonight I was able to hide behind the tree at the corner of the house and watch the owl. Saw him fly out and land on the same branch again. I also got to hear him whinny. Went inside so not to disturb them.