Well built owl nesting box. Because I wasn’t interested in applying a new coat of linseed oil every year, I chose to paint the box with light grey acrylic paint (two coats on sides and bottom, three coats on top). After researching placing nails/screws in trees, I decided to use three ratchet straps to attach the box to the tree, with horizontal router gap on the three black mounting pieces (where the line of **** holes are located) to accommodate the width of the ratchet straps. If I ever have to replace the three black mounting pieces, I’ll use two vertical treated 2x4s to attach to the box, then use a ratchet strap above and below the box to attach to the tree. Can’t wait for a new feathered friend to reside in its new house.