Welcome to the 2011 season. We had not been diligently reviewing the motion capture images, due to some technical challenges. But we noticed that 2 evenings ago (March 10th), we had an owl visit for perhaps a couple of minutes in the evening around 7:39pm!
So, the 2011 season is under way. There have been no visits captured since, so this may have been a male establishing and defending a nest box, or a female checking out potential laying sites. Previous to this, we had just had a few squirrel visits (see second photo, taken March 9th). We had to encourage a squirrel to leave on several occasions by banging on the box with a long stick