upcoming vacancies for Eastern Screech Owls

After spending the last two evenings listening to Eastern Screech Owls calling - it's a relaxing sound - I've decided to try and build my own owl nesting box. It doesn't look that difficult; all I have to do is to try not to saw off too many of my fingers with my rarely-used circular saw.

The biggest problem will probably be putting up the finished owl box. Seems that, when searching for a nesting site, owls follow the rule that higher is better. I have a couple of well-established trees in the back yard, including a persimmon that has its own possum fan club, but I better have a friend hang around to call 911 if I fall out of the tree during installation. I was an expert tree climber in my youth, but I suspect it is not a talent I've retained.